..............................................
1) 2/3
1) 10
Пошаговое объяснение:
1) 1 2/3 : 2 1/2 = 5/3 : 5/2 = 5/3 * 2/5 = 2/3
2) 12 : 1 1/5 = 12/1 : 6/5 = 12/1 * 5/6 = 10/1 = 10
