Two equivalent fractions for 21/35 are: 42/70, 3/5.
1/7
18/35 + 13/42 = 1211/1470 or 173/210
two fractions are equivalent 21 over 23 = 42/46, 63/69
6 over 10
27/42 = 9/14 or 18/28
3/5 42/70
30/42 = 5/7 = 10/14
2/3 or 20/30
18/35 + 13/42 = 108/210 + 65/210 = 173/210
Some equivalent fractions of 35/49 are: 5/7 = 10/14 = 15/21 = 20/28 = 25/35 = 30/42
2 over 7 and 12 over 42