1 5/15 = 20/15
2 4/6 = 16/6 = 8/3
4 3/12 = 51/12
5 8/6 = 38/6 = 19/3
4 18/24 = 114/24 = 19/4
3 9/2 = 15/2
i wasn't sure if you wanted them reduced into an inproper fraction or just reduced as the mixed number, so i made them into inproper fractions. hope this helps!!