Verified answer

Ответ:

18/7 : 1 13/14 - 9/14 · (2 - 1 5/12) = 23/24

1) 2 - 1 5/12 = 1 12/12 - 1 5/12 = 7/12

2) 18/7 : 1 13/14 = 18/7 : 27/14 = 18/7 · 14/27 = (2·2)/(1·3) = 4/3 = 1 1/3

3) 9/14 · 7/12 = (3·1)/(2·4) = 3/8

4) 1 1/3 - 3/8 = 1 8/24 - 9/24 = 32/24 - 9/24 = 23/24

Ответ: 23/24.

Пошаговое объяснение: