14/26=7/13, 18/24=3/4, 24/15=8/5, 25/35=5/7, 81/108=9/12=3/4
30/42=10/14=5/7, 33/39=11/13, 45/51=15/17, 12/60=1/5, 50/100=1/2
42/24=7/4, 35/77=5/11, 48/60=4/5, 72/96=6/8, 56/70=8/10=4/5
72/90=8/10=2/5, 60/105=12/21=4/7, 45/150=3/10, 84/120=7/10, 96/100=24/25