7 целых 5/12 - (1 целая 5/8 + 2 целых 1/24)

Question

7 целых 5/12 - (1 целая 5/8 + 2 целых 1/24)

Answer 1

1) 1 5/8 + 2 1/24 = 1 15/24 + 2 1/24 = 3 16/24 = 3 8/12 
2) 7 5/12 - 3 8/12 = 6 17/12 - 3 8/12 = 3 9/12 = 3 3/4