-53 2/3
Пошаговое объяснение:
1) 2 1/3 * (2/5 + 3/5) = 2 1/3 * 5/5 = 2 1/3 * 1 = 2 1/3
2) 3/4 - 5/8 = 6/8 - 5/8 = 1/8
3) 7 : 1/8 = 7 * 8 = 56
4) 2 1/3 - 56 = -53 2/3
-53 2/3
Пошаговое объяснение:
1) 2 1/3 * (2/5 + 3/5) = 2 1/3 * 5/5 = 2 1/3 * 1 = 2 1/3
2) 3/4 - 5/8 = 6/8 - 5/8 = 1/8
3) 7 : 1/8 = 7 * 8 = 56
4) 2 1/3 - 56 = -53 2/3