Question

[Nguyễn Thị Ngọc Diệp]

B = -1/2 - 2/3 +-3/4+2/3

Answer 1

[⭐Hannie⭐]

`B= -1/2 - 2/3 + (-3/4) +2/3`

`= (-1/2 + (-3)/4 ) + (-2/3 +2/3)`

`= ( -2/4 + (-3)/4 ) +0`

`= -5/4+0`

`=-5/4`