Yes.
27/64 is simplified.
No. The hcf of 51 and 64 is 1.
45/64 is already in its simplest form
1/7
You would first have to simplify, divide by 4 on both the numerator and the denominator giving you 16/1 the same as saying 16
13/32
no
No.
64/24 = (8*8)/(8*3) = 8/3
No, you can't.
1 over 2