Question

Помогите пожалуйста с 7 и 2​

Answer 1

7) 2 1/2 + 1 1/4 - 3 1/4 - 1 1/2 +7/8 - 3 1/8 = 2 4/8 + 1 2/8 - 3 2/8 - 1 4/8 + 7/8 - 3 1/8 = - 4

2) 10 7/15 - 3 2/5 - 4 1/2 + 12 3/5 + 6 1/5 + 2 1/4 = 10 28/60 - 3 24/60 - 4 30/60 + 12 36/60 + 6 12/60 + 2 15/60 = 24 37/60