Ответ:
Пошаговое объяснение:
1/4 : 3 1/2 = 1/4 : 7/2 = 1/4 * 2/7 = 1/14
3 1/2 : 2 1/3 = 7/2 : 7/3 = 7/2 * 3/7 = 3/2 = 1 1/2
10 1/2 : 3 1/2 = 21/2 : 7/2 = 21/2 * 2/7 = 3
5 1/2 : 3 2/3 = 11/2 : 11/3 = 11/2 * 3/11 = 3/2 = 1 1/2
1 5/7 : 3 3/4 = 12/7 : 15/4 = 12/7 * 4/15= 48/105 = 16/35
5 3/4 : 7 2/3 = 23/4 : 23/3 = 3/4