Question

`c)` `-11/41 .23/25-11/41 .2/25-11/41`

Answer 1

Lời giải:

$\frac{-11}{41}.\frac{23}{25}-\frac{11}{41}.\frac{2}{25}-\frac{11}{41}$

$=\frac{11}{41}(\frac{-23}{25}-\frac{2}{25}-1)$

$=\frac{11}{41}(\frac{-25}{25}-1)=\frac{11}{41}.(-1-1)=\frac{11}{41}.(-2)=\frac{-22}{41}$

Answer 2

`(-11)/41 . 23/25 - 11/41 . 2/25 - 11/41`

`= -11/41 . 23/25 - 11/41 . 2/25 - 11/41 . 1`

`=11/41 . (-23/25) + 11/51 . (-2)/25 - 11/41 .1`

`=11/41 . (-23/25 + (-2)/25 - 1)`

`=11/41 . (-1-1)`

`=11/41 . (-2)`

`=-22/41`