Question

помогите решыть пример (2+2/3)+(-(1+7/12))

Answer 1

Ответ:

6/3+2/3=8/3=2 2/3

1+7/12=12/12+7/12=19/12= 1 7/12

2 2/3+1 7/12= 2 8/12+ 1 7/12=3 15/12= 4 3/12= 4 1/4