39/42 = 13/14
42 over 204 in lowest terms = 7/34
56 over 42 (56/42) in lowest terms is 4/3 or 11/3
10 over 42 in lowest terms = 5/21
21/42 = 1/2
21/42 = 1/2
42/98 = 3/7
28/42 is 2/3 in its lowest terms
18 over 42 in lowest terms = 3/7
9/14
3/1.
42/25