Question

Помогите пожалуйста !!!

Answer 1

1) 1 5/35 + 21/35 - 31/35 = 61/35 - 31/35 = 30/35 = 6/7

2) 35/30 + 12/30 - 27/30 = (47-27)/30 = 20/30 = 2/3

Answer 2

$\frac{7}{6} + \frac{2}{5} - \frac{27}{30} = \\ = \frac{35 + 12 - 27}{30} = \frac{20}{30 } = \frac{2}{3}$