Question

(4 1/5-2 3/4)•2 2/19
(7 5/12-3 1/6)•2 2/17​

Answer 1

Пошаговое объяснение:

№1

1) 4 1/5 - 2 3/4 = 4 4/20 - 2 15/20 = 3 24/20 - 2 15/20 = 1 9/20

2) 1 9/20 * 2 2/19 = 29/20 * 40/19 = 29/1 * 2/19 = 58/19 = 3 1/19

№2

1) 7 5/12 - 3 1/6 = 7 5/12 - 3 2/12 = 4 3/12 = 4 1/4

2) 4 1/4 * 2 2/17 = 17/4 * 36/17 = 1/1 * 9/1 = 9/1 = 9