Пошаговое объяснение:
1) 3/8 : 21/32 = 3/8 * 32/21 = 3/1 * 4/21 = 12/21 = 4/7
2) 4/7 : 48/49 = 4/7 * 49/48 = 4/1 * 7/48 = 7/12
Пошаговое объяснение:
1) 3/8 : 21/32 = 3/8 * 32/21 = 3/1 * 4/21 = 12/21 = 4/7
2) 4/7 : 48/49 = 4/7 * 49/48 = 4/1 * 7/48 = 7/12