Question

-1/3+(-1/2)=
7/15 - 13/15 =
-3/8 * (-4/9 )=
-7/15 / 3/5 =

Answer 1

1) -1/3+(-1/2)=-2/6-3/6=-5/6
2) 7/15-13/15=-6/15
3) -3/8*(-4/9)=-1/2*(-1/3)=1/6
4) -7/15:3/5=-7/15*5/3=-7/3*1/3=-7/9
Надеюсь помогла)