3/2 = 3*50 / 2*50 = 150/100
5/4 = 25*5/ 4*25 = 125/100
6/5 = 6* 20 / 5*20 = 120/100
31/25 = 31*4 / 25*4 = 124/100
2/5 = 2*12/ 5*12 = 24/60
5/12 = 5*5 / 12*5 = 25/60
7/15 = 7*4/ 15*5= 28/60
13/30 = 13*3/ 30*2 = 26/60
1/4 = 1*6 / 4*6 = 6/24
7/6 = 7*4/ 6*4 = 28/24
3/8 = 3* 3 / 8*4 = 9/24
17/12 = 17*2/ 12*2 = 34/ 24
2/3 = 2*15/ 3*15 = 30/45
7/5 = 7*9 / 5*9 = 63 / 45
4/9 = 4*5 / 9*5 = 20/45
16/15 = 16*3/ 15*3 = 48/45