(3/4-5/6)×3+(3/4+5/6)×4

Question

(3/4-5/6)×3+(3/4+5/6)×4

Answer 1

3/4-5/6=9/12-10/12=-1/12
-1/12×3=-1/4
3/4+5/6=9/12+10/12=21/12
21/12×4=7
-1/4+7=6 3/4