14/21=2*7/3*7=2/3
12/51=3*2*2/17*3=4/17
30/42=3*2*5/3*2*7=5/7
15/95=3*5/5*19=3/19
18/24=3*2*3/3*2*4=3/4
4/26=2*2/2*13=2/13
33/39=11*3/13*3=11/13
33/48=3*11/3*2*2*2*2=11/16
25/35=5*5/5*7=5/7
10/90=10/10*9=1/9
45/51=5*3*3/3*17=15/17
63/108=7*9/12*9=7/12
81/108=3*3*9/9*3*4=3/4
35/45=5*7/5*9=7/9
12/60=12/5*12=1/5
34/82=2*17/2*41=17/41
24/15=3*8/3*5=8/5=1 3/5
15/93=3*5/3*31=5/31
50/100=50/2*50=1/2
105/200=5*3*7/5*5*8=21/40