No, it can be simplified further.
No.
132/240 = 11/20
42/132 = 7/22
9/132 = 3/44
Yes.
It is: 135/216 = 5/8 simplified
135/352 is already in its simplest form
4/9
It is: 48/132 = 4/11 simplified
83/132 cannot be simplified as hcf(83, 132) = 1.
It's 14 over 15.