Question

Помогите пожалуйста с математикой номер 627 только 1, 2, 3,

Answer 1

1) (-3/7 × 1/4) × (-4) = -5/28 × (-4) = 5/7

2) (-4 1/3 ×1,3) ×10/13 = -5 19/30 × 10/13 = - 4 1/3

3) (-5 6/7 × 3/13) × (-4 1/3) -1 32/91×(-4 1/3) = 5 6/7