fraction which is equivalent to 4 over 20 = 1/5
14
equivalent fraction for 20 over 45 = 4/9
24
If you mean 20/36 then it is not equivalent to 4/9 but it is equivalent to 5/9
20/35 = 4/7
16/20 = 4/5
15/20
4/5.
4/25
2.25 is equivalent to 9/4 as a fraction.
20