Yes, to 11/15
7/11 cannot be reduced.
15/72 = 5/24 reduced
It cannot be reduced.
It is: 5/12 reduced
15 over 30 reduced to lowest terms is 1/2
3/11 cannot be reduced, it is already in its simplest form.
10/11 is in lowest terms and can't be further reduced.
No.
No.
No
The fraction 4/15 cannot be reduced any more.