-13/17+(2/3+3/17)

Giải em nhanh nha

2 câu trả lời

`(-13)/17+(2/3+3/17)`

`= (-13)/17+2/3+3/17`

`= [(-13)/17+3/17]+2/3`

`= (-10)/17+2/3`

`= (-30)/51+34/51`

`= 4/51`

`#Jo`

 

`-13/17` `+` `(` `2/3` `+` `3/17` `)`

`=` `-13/17` `+` `2/3` `+` `3/17`

`=` `(` `-13/17` `+` `3/17``)` `+` `2/3`

`=` `-10/17` `+` `2/3`

`=` `-30/51` `+` `34/51`

`=` `4/51`