1 1/3
Пошаговое объяснение:
1) 4 - 3 43/55 = 12/55
2) 12/55 : 5/22 = 12/55 * 22/5 = 24/25
3) 7/75 - 24/25 = 7/75 - 72/75 = -65/75 = -13/15
4) -13/15 + 2 1/5 = -13/15 + 2 3/15 = 1 18/15 - 13/15 = 1 5/15 = 1 1/3
