59/12 is in its simplest form.
6/11
9/12 is reduced to 3/4.
11 over 12 is in its simplest form, and cannot be reduced further.
It isn't, it can be reduced to 1/3.
52/48 = 13/12 = 11/12 or 1.5
12/25 IS the simplest form, meaning it cannot be reduced.
Expressed as a top-heavy fraction in its simplest form, 18/12 = 3/2 or three over two.
4/5
15/12 = 5/4
12/17 is in simplest form.
12/133 is in its simplest form.