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6.
378 = 2 x 33 x 7
12 = 22 x 3
hcf = 2 x 3 = 6
The GCF is 21.
The GCF is 18.
The GCF is 9.
If you mean 5/12 of 378 then it is 157.5
5/12 of 378=157.5.
The GCF is 126.
The GCF is 54.
The GCF is 2.
It is: 2
6
The GCF is 42.
The GCF is 14.