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the answer is 15
The GCF is 15.
45 as a percentage of 60 is 45/60 times 100 = 75%
30, 45, 60, 75, 90 etc.
15, 30, 45, 60, 75 and so on.
The GCF of 45, 60, and 75 is 15
15
It could be 15, 30, 45 or 60
It is: 15