Question

Tính bằng cách thuận tiện nhất:

(4/5+5/4)x3/4

Answer 1

4/5+5/4x3/4= (5/4 +3/4) /5/4 =8/4+5/4=13/4

Answer 2

`(4/5+5/4)xx3/4`

`=(16/20+25/20)xx3/4`

`=41/20xx3/4`

`=123/80`

Answer 3

`(4/5+5/4)xx3/4`

`= 4/5 xx 3/4 + 5/4 xx 3/4`

`= 12/20 + 15/16`

`= 3/5 + 15/16`

`=123/80`

Answer 4

cảm ơn nha