Ôn tập về phân số (tiếp) by Nguyễn Xuân Thủy https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7 en-us 2021-10-26 04:27:26 UTC 2025-10-08 17:35:37 UTC hello@padlet.com Mộc Anh nguyenxuanmocanh https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128135491 3/5 = 3 x 3 / 5 x 3 = 9/15
3/5 = 3 x 5 / 5 x 5 = 15/25
3/5 = 3 x 7 / 5 x 7 = 21/35
5/8 = 5 x 4 / 8 x 4 = 20/32
Các nhóm phân số bằng nhau là:
3/5 = 9/15 = 15/25 = 21/35
5/8 = 20/32]]> 2022-04-04 07:21:13 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128135491 Lê Minh https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128135506 3/5 = 3 x 7/ 5 x 7 = 21/35 
5/8 = 5 x 4/ 8 x 4 = 20/32 
9/15 = 9 : 3/ 15 : 3 = 3/5 = 3 x 5/ 5 x 5 = 15/25
Vậy các cặp phân số là: (3/5, 21/35) (5/8, 20/32) (9/15, 15/25)
]]> 2022-04-04 07:21:14 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128135506 Minh Anh https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128135764

]]> 2022-04-04 07:21:26 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128135764 Trần Quốc Nam https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128138329

]]> 2022-04-04 07:23:00 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128138329 Ha Linh 011974491 https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128139100 2022-04-04 07:23:32 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128139100 Gia nghi https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128141018 2022-04-04 07:24:50 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128141018 Thanh Bách https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128141674 2022-04-04 07:25:18 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128141674 Phong https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128143143 3/5=3 x 7 /  5 x 7=21/35

5 / 8=5 x 4 /  8 x 4=20 / 32 

9 / 15=9 : 3 / 15 : 3=3 / 5 =3 x 5 / 5 x 5=15 / 25

vậy nhưng phân số bằng nhau là

3/5 và 21/35. 9/15 và 15/25. 5/8 và 20/32

]]> 2022-04-04 07:26:21 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128143143 Phương Linh https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128143175 2022-04-04 07:26:23 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128143175 minh khôi qdfjgkdgdffffgsjgsdgsdfgsdgfd https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128143959 3/5= 3*5 / 5*5= 15 / 25
3/5= 3*3 / 5*3 = 9 / 15
3/5= 3*7 / 5*7 = 21 / 35
5/8 = 5*4 / 8*4 = 20 / 32
Những phân số bằng nhau là:
3/5 = 15/25 = 9/15 = 21/35
5/8 = 20/32]]> 2022-04-04 07:26:55 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128143959 Đỗ Minh Châu- bài 3 ChauRoblox https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128144090 3/5 ; 15/25 ; 9/15 ; 21/35 
Vì 15/25 = 15 : 5/25 : 5 = 3/5; 9/15 = 9 : 3/15 : 3 =3/5; 21/35 = 21 : 7/35 : 7 = 3/5

5/8 ; 20/32
Vì 20/32 = 20 : 4/32 : 4 = 5/8. 
Các phân số bằng nhau là :
3/5; 15/25; 9/15 và 21/35
5/8 và 20/32]]> 2022-04-04 07:27:02 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128144090 khanh AlphaKennyBody2000 https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128144551 3/5=3 x 7/5 x 7 = 21/35 
5/8=5 x 4/8 x 4 = 20/32 
9/15=9 : 3/15 : 3 = 3/5 = 3 x 5/5 x 5 = 15/25 
Vay: 3/5 = 1. 15/25 = 21/35=9/15
  2. 5/8=20/32
]]> 2022-04-04 07:27:20 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128144551 Mạnh Đức DonotDoIt https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128145262 2022-04-04 07:27:54 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128145262 Phan Anh habeagriseco https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128145268 15/25=15:5/25:5=3/5
 9/15=9:3/15:3=3/5
21/35=21:7/35:7=3/5

5/8=5x4/8x4=20/32
Vậy 3/5=15/25=9/15=21/35; 5/8=20/32
]]> 2022-04-04 07:27:54 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128145268 Đăng Giáp giaple1611 https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128146806 15/25=15:5/25:5=3/5
9/15=9:3/15:3=3/5
20/32=20:4/32:4=5/8
21/35=21:7/35:7=3/5
Vậy các phân số bằng nhau trong các phân số đã cho là: 3/5=15/25=21/35=9/15, 20/32=5/8]]> 2022-04-04 07:29:08 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128146806 Trường Giang https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128146840 2022-04-04 07:29:09 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128146840 Thành Vinh nguyenthanhvinh0911 https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128146860 2022-04-04 07:29:10 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128146860 minhthu https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128147809

 
]]> 2022-04-04 07:29:49 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128147809 Minh Quân Mit310 https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128150065 2022-04-04 07:31:24 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128150065 Nguyễn Minh Phương lha109272 https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128150075 3/5= 3 x 3 / 5 x 3 = 9/15
3/5= 3 x 5 / 5 x 5= 15/25
5/8 = 5 x 4 / 8 x 4 = 20/32
3/5= 3 x 7 / 5 x 7 = 21/35
Những phân số bằng nhau là:
3/5 = 9/15 = 15/25 = 21/35
5/8 = 20/32]]> 2022-04-04 07:31:25 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128150075 Đức Chính https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128152219 3 / 5 = 3 x 3 / 5 x 3 = 9 / 15
3 / 5 = 3 x 5 / 5 x 5 = 15 / 25
3 / 5 = 3 x 7 / 5 x 7 = 21 / 35
5 / 8 = 5 x 4 / 8 x 4 = 20 / 32
Các phân số bằng nhau:
3 / 5=15 / 25= 9/ 15=21 / 35; 5 / 8=20 / 32]]> 2022-04-04 07:32:54 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128152219 minh quang https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128156187 2022-04-04 07:36:05 UTC https://padlet.com/thuynguyen77/k4l9ned1gc8rdga7/wish/2128156187