4/19
-57
69
I think theres no simplest form because 12 is even and 57 is odd and you can not simplify a fraction with a odd and even number.
12/57 can be simplified to 4/19
4/19
12/19 or 0.6316
19 over 4
57/215 is in its simplest form.
57/79 is in its simplest form.
34/57 is in its simplest form.
13/57 is the simplest form
53/57 is the simplest form.