15/20 can be reduced to 3/4
It is 3/5
5 over 6
15/36 = 5/12
20 is in its simplest form.
The simplest form of 20 is 20, as it appears in the question.
20/9 is in its simplest form.
3/20 is in its simplest form.
13/20 is the simplest form.
33/20 is in simplest form
11/20 is in its simplest form.
31/20 is in its simplest form.
20/3 is in its simplest form.