5/13
3/13
It reduces to 5/13
13/21 can't be reduced.
2/13 is in reduced form
15/72 = 5/24 reduced
11/15 cannot be reduced further.
6/13 is in lowest terms and can't be reduced.
The fraction 13/35 cannot be reduced any more.
The fraction 13/40 cannot be reduced any more.
The fraction 22/13 cannot be reduced any more.
No.