(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)1/8+2/9=9/72+16/72=25/72
2)25/72-1/4=25/72-18/72=7/72
3)7/72*5 1/7=7/72*36/7=72/36=2
4)7/9-2/3=7/9-6/9=1/9
5)1/9+1/6=2/18+3/18=5/18
6)2÷5/18=2/1*18/5=36/5=7 1/5=7,2