(1/8+2/9-1/4)×5.1/7÷(7/9-2/3+1/6)

Question

(1/8+2/9-1/4)×5.1/7÷(7/9-2/3+1/6)

Answer 1

(1/8+2/9-1/4)×5.1/7÷(7/9-2/3+1/6)=1 4/5
1)1/8+2/9=25/72
2)25/72-1/4=7/72
3)7/9-2/3=1/9
4)1/9+1/6=5/18
5)7/72*5 1/7=1/2
6)1/2:5/18=1 4/5