They are: 30/14 and 45/21
5:7 (or 5/7) is equivalent to 10:14 (10/14) and 15:21 (15/21).
10 over 24 and 15 over 36
2/3, 4/6
8/30. 4/15. 12/45. Etc.
18
Ratios equall to 9/12 are 3/4, 6/8, 12/16 15/20, 18/24.........
15/1 and 150/10 are two such.
15/1, 150/10 are two possible equivalents.
the ratios of 3 and 15 is 20%.
They are: 13 to 15 and 39 to 45
13 to 15 39 to 45
30 to 12 45 to 18