b) 8/20 = 8 : 4 / 20: 4 = ?/? 10/16 = 10:2/ 16: 2=?/?

b) 820=8:420:4=??

1016=10:216:2=??

2565=25:565:5=??

Trả lời
b) 8/20 = 8 : 4 / 20: 4 = ?/?   10/16 = 10:2/ 16: 2=?/? (ảnh 1)