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20/132
factor out a 4
4*5/4*33
as the factor 4 appears in both numerator and denominator once each it can be eliminated
= 5/33
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No.
42/132 = 7/22
9/132 = 3/44
4/9
31/66
132/240 = 11/20
132/240 can be simplified to 11/20
Yes.
It is: 48/132 = 4/11 simplified
83/132 cannot be simplified as hcf(83, 132) = 1.
17 over 20 simplified is 17/20.
8 over 20 simplified is 2 over 5