Пошаговое объяснение:
1) 2 1/2 + 7/8 = 2 4/8 + 7/8 = 2 11/8 = 3 3/8
2) 10 1/8 : 3 3/8 = 81/8 * 8/27 = 81/27 = 3
3) 3 * 5 1/3 = 3 * 16/3 = 48/3 = 16
4) 3 1/2 + 16 = 19 1/2
Пошаговое объяснение:
1) 2 1/2 + 7/8 = 2 4/8 + 7/8 = 2 11/8 = 3 3/8
2) 10 1/8 : 3 3/8 = 81/8 * 8/27 = 81/27 = 3
3) 3 * 5 1/3 = 3 * 16/3 = 48/3 = 16
4) 3 1/2 + 16 = 19 1/2