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`