Ответ:

В решении.

Пошаговое объяснение:

1) 6/12 : 3 18/28 = 6/12 : 102/28 = (6 * 28)/(12 * 102) = 7/51;

2) 2 1/2 : 2 11/14 = 5/2 : 39/14 = (5 * 14)/(2 * 39) = 35/39;

3) 2 14/16 : 1 3/8 = 46/16 : 11/8 = (46 * 8)/(16 * 11) = 2 и 1/11;

4) 3 1/2 : 3 3/22 = 7/2 : 69/22 = (7 * 22)/(2 * 69) = 77/69 = 1 и 8/69;

5) 2 4/6 : 1 4/8 = 16/6 : 12/8 = (16 * 8)/(6 * 12) = 16/9 = 1 и 7/9.