Question

На сегодня решите эти дроби, 20 баллов​ дроби

Answer 1

Ответ:

Пошаговое объяснение:

1) (7/8 + 3/4 - 5/16) × (1/2 + 1/3 - 8/6) = (14/16 + 12/16 - 5/16) × (3/6 + 2/6 - 8/6) = 21/16 × (-3/6) = - 63/96 = - 21/32

2) (1/8 ÷ 7/5 - 3/56) + 1/112 - 50/224 = (1/8 × 5/7 - 3/56) + 1/112 - 50/224 = (5/56 - 3/56) + 1/112 - 50/224 = 2/56 + 1/112 - 50/224 = 4/112 + 1/112 - 50/224 = 5/112 - 50/224 = 10/224 - 50/244 = - 40/224 = - 10/56 = - 5/28

3) 3/7 × 7/3 ÷ 1 = 1 ÷ 1 = 1