-8/17+-4/25 giúp em ạ

2 câu trả lời

$\frac{-8}{17}$ $\text{+ }$$\frac{-4}{25}$ $\text{= }$$\frac{-200}{425}$ $\text{+ }$$\frac{-68}{425}$ $\text{= }$$\frac{-268}{425}$

 

Đáp án:

`-8/17+(-4/25)`

`=(-8.25)/(17.25)+(-4.17)/(25.17)`

`=-200/425+(-68)/425`

`=(-200-68)/425`

`=-268/425`