5. 1/3 divided by 2/5=5/6

6. 1/9 divided by 1/2=2/9

7. 2/3 divided by 1/4=2 2/3

8. 1/2 divided by 3/4=2/3

9. 4/5 divided by 2=2/5

10. 4/5 divided by 1/10=8

11. 5/12 divided by 5/6=1/2

12. 9/10 divided by 3= 3/10