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.
3/20 is in its simplest form.
20/9 is in its simplest form.
33/20 is in simplest form
20/3 is in its simplest form.
17/20 is in its simplest form.
20/153 is in its simplest form.
1/20 is in its simplest form.