15 over 30 in simplest form is 1/2.
It is already in its simplest form.
9/15 in its simplest form is 3/5
30/16 in simplest form is 15 over 8
It is: 15/60 = 1/4 in its simplest form
11/15
1/7
3/13
4 over 15 is already in lowest terms.
2x over 15
15/6 = 5/2 = 2 1/2
12/15 = 4/5