(2 7/15 + 1 7/12) * 1 1/9

Question

(2 7/15 + 1 7/12) * 1 1/9

Answer 1

1. 2 7/15+1 7/12=3 (28+35)/60=3 63/60=4 1/20=81/20
2. 81/20*1 1/9=81/20*10/9=(81*10)/(20*9)=9/2=4 1/2