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when adding and subtracting decimals you need to have the same denominator

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When adding or subtracting fractions yo have to convert them go improper fractions .

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With adding and subtracting fraction you have you it were the denomanator and . sometimes they don't so that

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if the bottom number diffrent you find the lcm of the both bottom number if it a whole number you will need to simply the number and you get your number

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when you are adding and subtracting decimals you need to have the same denominato

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when you are adding and subtracting decimals you need to have the same denominato

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I know you change the denominator by using GCF. Some times you rewrite the fraction. By Sovient Taylor

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I know you change the denominator by using GCF. Some times you rewrite the fraction. By Sovient Taylor

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When you a deal with fractions with  whole numbers you have to change the whole number.

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when you are adding are subtracting mixed numbers

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when you are adding are subtracting mixed numbers

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the denominator will stay the same

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whole numbers first.
then fractions

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Emarion
every time you add or subtract YOU have CHANGE the DENOMINATOR.

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Well from my point of view adding or and subtracting mixed fractions well its bound to have the same denominator so the answer is going to have the same denominator as the new are being worked on.

.-.

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When you add or subtracting you have the denomanator 

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When you add or subtracting you have the denomanator 

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you have to add the whole numbers first then add the fraction.i don't know of this is write or not just can't really remember!?

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Skylar young                            When you  subtract mixed numbers the denominator stay the same throughout the whole problem. you never change the denominator when working a problem

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Skylar young                            When you  subtract mixed numbers the denominator stay the same throughout the whole problem. you never change the denominator when working a problem

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when subtracting you can make the numerator small by change the number but with the denominator you
can't

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If you are subtracting mixed numbers and the top mixed number is smaller you use one of the groups from the whole number to get a bigger number and it is okay if the top mixed number is a improper fraction for now but once you subtract it gets back to a mixed number

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you do gcf if you are adding

you do lcm if you are subtracting

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when you add and subtract decimals you need to have the same denominator

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when you add and subtract decimals you need to have the same denominator

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if you want use the mixnumber  you have to find LCM

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good

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Step 1- Keep the denominator.textClipping

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Step 1- Keep the denominator.textClipping

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adding fractions and subtracting fractions

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Lillian                                                                                            I know that it is connected to LCM because first you have to find the LCM of that number or else it will be very, very difficult. then, once yo have the LCM of the two numbers you can start to add and then you can simplify it and that will be your answer, if its not a mixed number.

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Lillian                                                                                            I know that it is connected to LCM because first you have to find the LCM of that number or else it will be very, very difficult. then, once yo have the LCM of the two numbers you can start to add and then you can simplify it and that will be your answer, if its not a mixed number.

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Finding factors of a number | Factors and multiples | Pre-Algebra | Khan Academy

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before you can add or subtract you have to find the LCM in both of the denominators

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I know when adding and subtracting fraction can be hard but its really easy all you do is add and subtract into a whole number or a decmail

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         Sam,                                         if the denominator is not the same as the other number that you are adding or subtracting from then you have to make by finding the greatest common factor. 

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         Sam,                                         if the denominator is not the same as the other number that you are adding or subtracting from then you have to make by finding the greatest common factor. 

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what I know about adding or subtracting mixed numbers is that you find the lcm of your two numbers.you also can just add the mix number first and then add or subtract the fractions.

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what I know about adding or subtracting mixed numbers is that you find the lcm of your two numbers.you also can just add the mix number first and then add or subtract the fractions.

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Kamayia

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Detario

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Math Antics - Adding and Subtracting Fractions

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when adding and subtracting decimals you have to have the same denominator.

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You use LCM to find the same denometor by adding and subtracting unlike fractions

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i know when adding and subtracting fraction can be hard but its really easy all you do is add and subtract into a whole number or a decimal

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i know when adding and subtracting fraction can be hard but its really easy all you do is add and subtract into a whole number or a decimal

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KIKI

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when u (+) or (-) mixed #s
u have to make sure have the same denominator.

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The denominator has to be the same number or you want get the correct answer for the problem

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Math Antics - Adding and Subtracting Fractions

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What I know about adding and subtracting.When you are adding and subtracting you always (before adding or subtracting )have to find the common factor of both fraction.Regroup if you need to.

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braden m

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I know you must find the same denominator before you add or subtract

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what i know about adding and subtracting mixed fractions is the steps1 find the lcd least common denominator, step2  find the equivalent fraction, step3 Add or subtract the fractions and add or subtract the whole numbers. those are the three steps.

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find the same denominator before you add or subtract the fractions

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         Lora Morgan                                              I know that you have to find the LCD [Least common denominator] between the two fractions.Then you divide the LCD to the fractions denominator.Whatever you get is how much you multiply.

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         Lora Morgan                                              I know that you have to find the LCD [Least common denominator] between the two fractions.Then you divide the LCD to the fractions denominator.Whatever you get is how much you multiply.

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It when it said find the fraction and it will take a plus or mins 

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It when it said find the fraction and it will take a plus or mins 

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sonia

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Nadia : I know that you have to find the LCM before you add or subtract

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Nadia : I know that you have to find the LCM before you add or subtract

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I know that you always have to find the LCM of both denominators before you add

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before you can add or subtract fraction with different denominators ,you must find e

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before you can add or subtract fraction with different denominators ,you must find e

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Before you can add or subtract you have to have the same denominator.
To add or subtract with different denominators you have to 1.Find the smallest multiple of both numbers. 2. Rewrite the fractions as an equivalent fraction use the smallest multiple as your denominator

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Adding and Subtracting Fractions with Unlike Denominators

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Madison                                             when you are adding fraction first you have to find the least common multiple for both of the numbers. Second you can then multiply that number by the numerator. when you are doing subtracting fractions you have to find the lcm of both numbers to.then you multiply the numerator and then you can subtract the numbers 

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Madison                                             when you are adding fraction first you have to find the least common multiple for both of the numbers. Second you can then multiply that number by the numerator. when you are doing subtracting fractions you have to find the lcm of both numbers to.then you multiply the numerator and then you can subtract the numbers 

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i kown is about your supose a the holl together  multeple the d to get the number.

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elsie                     adding and subtracting mixed numbers.

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elsie                     adding and subtracting mixed numbers.

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when you are adding and/or subtracting mixed numbers(vise versa)you can turn the numbers into a decimal

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Before you can add or subtract fractions with different denominators, you must first find equivalent fractions with the same denominator, like this:

Find the smallest multiple (LCM) of both numbers.

Rewrite the fractions as equivalent fractions with the LCM as the denominator.

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If the bottom fraction is different you do LCM

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1 3/8 + 2 4/10
Step1:change to improper fractions.
Step2:add the problem.
Step3:change the number back to a mixed number and get your answer.
1 3/8 + 2 4/10 =3 31/40

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How To Add Fractions - Fast and Easy fraction addition

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Numerator changes

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find the lcm and the gcf

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I know that you find using equivalent fractions to add fraction that have the same denominator.

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I know that the numerator can change but the denominator can't

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I know it is best to have the same denominator in order to add or subtract.

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i know it is best to find the least common multiple of both numbers

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The denominator stay the same

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you can do t x on some mixed numbers

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I know that you need to change the Botton fraction

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   Madison davis                                          I know that you have to change then to improper first                   

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   Madison davis                                          I know that you have to change then to improper first                   

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When adding or subtracting mixed numbers you have to change them to improper fractions to do the problem and then when your done with the problem you change it back to a mixed number

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I know that they have to have the same denominator before you can add or subtract.

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I know it is best to change the mixed numbers to improper fractions to solve the problems asked. I also know that mixed numbers are nothing more than a whole number added to a fraction. Here are a few examples to what a said.
3 2/3  write this as a improper fraction.
3 2/3 iS 11/3. I got the because 3 times 3 is 9 plus 2 is 11. And you would keep the same denominator. Which is in this case 3.

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I know how to use it because it easy to figure out all you got to do is multiply and then subtract it both of the numbers get the factor and when you do it you add then you get your answer to your problem

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I know that you have to subtract or add the mixed number you get you have to find the gif or lam

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if they have the same denominator than all you have to do is subtract or add but if they don't have the same denominator than you will need to find the GCF or the LCM and than work the problem out

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When adding or subtracting mixed numbers you have to make the denominators the same and what ever number you multiplied the denominator by you have to multiply the numerator by the same number.

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you have to take the mixed number then add then after you through adding you can add the mix number then when you do that you get your answer.

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One thing about subtracting mixed numbers is that you can't do it unless you solve it.You can also do this when you have a mixed number and only a fraction you can't subtract that so you need to bring the big number over and then you can solve it.Something about adding mixed numbers it's not that easy as you think. So you add the big numbers first then you add the fractions together and then see what you get.

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I know that you find the lowest common factor the bottom and top

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Find the least common multiple of both numbers