In it's lowest term, it would be 18/25 - It cannot be reduced any further.
49 over 50 is already in lowest terms.
9 over 50 is already a fraction in its lowest terms.
19/50 is lowest terms.
½
33/50
39/50 is a fraction in its lowest terms
27/50
31/50
5/7
21/50
7/25
11/50