Both numbers divide by 9 to give 7/10
lowest term of 81 over 90: 9/10
90/126 is 5/7 in its lowest terms
90/98 in lowest terms is 45/49
90/100 = 9/10
3/20
90/35 = 18/7
7 / 30
84 over 90 in the lowest terms is 14/15
90 over 95 in lowest terms is 18/19
63/90 in simplest terms is 7/10.
63/90 = 7/10
1 --- 2