Question

помагите пжжжжжжжжж​

Answer 1

1/3-(+2/3)= -1/3
-2/5-(-3/5)= 1/5
-3/7-(+4/7)= -1
5/8-(-7/8)= 3/2
-1/9-(+2/9)= -1/3

Answer 2

1) 1/3-2/3=-1/3

2) -2/5+3/5=1/5

3) -2/5+3/5=1/5

4) -3/7-4/7=-7/7=-1

5) 5/8+7/8=15/8=1 7/8

6) -1/9-2/9=-3/9