4/7
28/55 is in its simplest form.
28/64 in simplest form = 0.4375
16/28 = 4/7
28/9 is in its simplest form.
28/185 is in its simplest form.
69/28 is in its simplest form.
13/28 is in its simplest form.
9/28 is in its simplest form.
33/28 is in its simplest form.
11/28 is the simplest form.
9/28 is in its simplest form.