It is already simplified.
10/32, when simplified, is equivalent to 5/16.
It is already in simplified form.
11/39 is simplified.
8/11 is as simplified as it can get.
You can divide both the numerator and the denominator by 2. Therefore, it's 11/16 which cannot be simplified any further.
32 over 21 (32/21) cannot be further simplified.