Question

-3 phần 4 nhân 5 phần 7

Answer 1

=-3*5/4*7=-15/28

Answer 2

\(-\dfrac{3}{4}\times\dfrac{5}{7}=\dfrac{-3\times5}{4\times7}=-\dfrac{15}{28}\)

Answer 3

`-3/4xx5/7`

`=(-3xx5)/(4xx7)`

`=-15/28`

Answer 4

-3/4x5/7

=-3x5/4x7

=-15/28

Answer 5

\(\dfrac{-3}{4}\)✖\(\dfrac{5}{7}\)=\(\dfrac{-15}{28}\)