Question

помогите пожалуйста решить ​ 584

Answer 1

Пошаговое объяснение:

№1

1) 3/4 + 1/20 = 15/20 + 1/20 = 16/20 = 4/5

2) 4/5 * 1/2 = 4/10 = 2/5

№2

1) 7 3/5 - 2 4/15 = 7 9/15 - 2 4/15 = 5 5/15 = 5 1/3

2) 5 1/3 * 9/32 = 16/3 * 9/32 = 2/1 * 3/4 = 6/4 = 3/2 = 1 1/2

№3

1) 5 1/2 + 2 3/5 = 5 5/10 + 2 6/10 = 7 11/10 = 8 1/10

2) 8 1/10 * 5/9 = 81/10 * 5/9 = 9/2 * 1/1 = 9/2 = 4 1/2