Question

(3 1/8 + 1 1/8) - (1 3/12 + 1 5/12)

Answer 1

1) 3 1/8+1 1/8=4 2/8=4 1/4.
2) 1 3/12+1 5/12=2 8/12=2 2/3.
3) 4 1/4-2 2/3=4 3/12-2 8/12=1 7/12.
Ответ: 1 7/12.

Answer 2

(3 1/8 + 1 1/8) - (1 3/12 + 1 5/12)=2-2  8/12=-8/12=-2/3