Помогите!!!!!!!!
а)4 3/8-(3 5/7-1 5/7)+1 5/8
б)12 7/12-4 5/12-(20 3/4-19 3/4)
1. 4 3\8 - 2 + 1 5\8 = 6 -2 =4 2. 12 7\12 -4 5\12 - 1= 8 2\12 -1 = 7 1\6