Question

(23-15 9/14)-(12 1/7-8 2/5)

Answer 1

Ответ:

3 43/70

Пошаговое объяснение:

23-15 9/14 - (12 1/7 - 8 2/5) = 23 - 15 9/14 - 12 1/7 + 8 2/5 = 7 5/14 + 8 2/5 - 12 1/7 = 3 (5/14 + 2/5 - 1/7) = 3 (25/70 + 28/70 - 10/70) = 3 43/70