Выполните действие : (11 2/3 -8 3/4) +(3 1/3 +2 5/6) - 4 7/12=

1) 11 2/3- 8 3/4= 35/3-35/4=140/12-105/12=35/12
2)3 1/3+2 5/6= 10/3+17/6=20/6+17/6=37/6
3)35/12+37/6=35/12+74/12=109/12
4)109/12-4 7/12= 109/12--55/12=54/12=4 6/12 =4 1/2

1)     11 2/3 - 8 3/4 = (11-8) +(2/3-3/4) = 3+ (8-9)/12 = 3 + (-1/12) = 2 12/12 - 1/12 = 2 11/12

2)    3 1/3 + 2 5/6 = (3+2) + (1/3+5/6) =5+(2+5)/6 =5 +7/6 = 5+1 1/6 = 6 1/6

3)      2 11/12+6 1/6-4 7/12 = (2+6-4) +(11/12+1/6-7/12) = 4 +(11+2-7)/12 = 4+6/12 = 4 1/2