9/11-7/8+13/11+-1/8 nhờ mọi người hết đó

2 câu trả lời

$\text{$\frac{9}{11}$- $\frac{7}{8}$+ $\frac{13}{11}$- $\frac{1}{8}$ }$

$\text{=($\frac{9}{11}$+ $\frac{13}{11}$) - ($\frac{7}{8}$+ $\frac{1}{8}$)}$

$\text{=$\frac{9+13}{11}$- $\frac{7+1}{8}$ }$

$\text{=$\frac{22}{11}$- $\frac{8}{8}$ }$

$\text{=2-1=1}$

`=(9/11+13/11)+((-7)/8+(-1)/8)`

`=22/11+(-8)/8`

`=2-1`

`=1`