Ответ:
1
Пошаговое объяснение:
1) 1 1/2 + 2 1/3 = 1 3/6 + 2 2/6 = 3 5/6
2) 3 5/6 + 3 1/4 = 3 10/12 + 3 3/12 = 6 13/12 = 7 1/12
3) 7 1/12 : 4 1/4 = 85/12 : 17/4 = 85/12 * 4/17 = 5/3
4) 10 1/2 : 4 1/2 = 21/2 : 9/2 = 21/2 * 2/9 = 7/3 = 2 1/3
5) 4 - 2 1/3 = 1 2/3
6) 5/3 : 1 2/3 = 5/3 : 5/3 = 1
7) 1² = 1
ответ: 1