Verified Answer :

  1. divide by 15 to get 1/4
    13. divide by 2 to get 16/20
    14. divide by 10 to get 8/10
    15. divide by 5 to get 7/9
    16. divide by 15 to get 1/5
    17. divide by 8 to get 4/6
    18. divide by 2 to get 9/16

    Are you ok on the rest?
    And let me know if you need more help

14) 8/10 15) 7/9 if u need more specific questions ask me