13/16 is the simplest form.
13/46 is in its simplest form
13/20 is the simplest form.
13/50 is in its simplest form.
13/31 is in its simplest form.
13/57 is the simplest form
13/28 is in its simplest form.
13/19 is in its simplest form.
17/13 is in its simplest form.
13/42 is in its simplest form.
13/21 is in its simplest form.
13/30 is in its simplest form.