66 over 7 is in its lowest terms.
53/45 cannot be simplified further.
It is: 45/1000 = 9/200 simplified
16/45 cannot be simplified.
45/63 is 5/7 simplified
66/100 = 33/50
66/540 = 11/90
It is: 72/66 = 12/11
66 over 100 (: simplified to 33 over 100
It is: 1281/45 = 427/15 simplified
It is: 45/171 = 5/19 simplified
2 over 11