Пошаговое объяснение:

№1

1) 3 1/3 : 2/3 = 10/3 * 3/2 = 5/1 * 1/1 = 5/1 = 5

2) 5 * 1/5 = 5/5 = 1

№2

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

2) 2 : 6 = 2/6 = 1/3

№3

1) 3 1/5 * 2/8 = 16/5 * 2/8 = 2/5 * 2/1 = 4/5

2) 4/5 : 2/7 = 4/5 * 7/2 = 2/5 * 7/1 = 14/5 = 2 4/5