Question

8/7 : x = 4/5

Answer 1

`8/7 : x = 4/5`

` x = 8/7 : 4/5`

` x = 8/7 xx 5/4`

` x = 10/7`

Vậy ` x = 10/7`

Answer 2

8/7 : x = 4/5
        x = 8/7 : 4/5
        x = 10/7

Answer 3

8/7: x = 4/5

x = 8/7 : 4/5

x = 8/7 x 4/5

= 10/7