15. 3/8 divided by 9=1/24

Question

17. 2/5 divided by 4/7= 7/10

19. 6/7 divided by 3/11= 3 3/21

21. 5/6 divided by 5/12= 2

23. 7/9 divided by 1/7= 5 4/9

35. 3/5 divided by 9/11=33/45