Question

8: 2 2/5: 2 1/7: 5/7 5 1/4: 7. 4: 8/9 ! : -(

Answer 1

(4*2/5*1/2*1/7*7/5)/(5*1/4*1/7*4*9/8)=(4*1/5*1/5)/(5/7*9/8)=(4/25)/(45/56)=4/25*56/45=224/1125