Question

помогите пж срочно нужно по действиям​

Answer 1

Ответ:

1) 2/3 + (-10 1/3) = - 9 2/3

2) -3/8 + 4/7 = -21/56 + 32/56 = 11/56

3) 3/5 + (-1 5/6) = 3/5 + (-11/6) = 18/30 - 55/30 = -37/30 = -1 7/30

4) 2/9+(-1 5/6) = 4/18 - 1 15/18 = - 1 11/18

5) 4/5 + (-2/7) = 28/35 -10/35 = 18/35

6) -9 + 2/9 = - 8 7/9