4
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The GCF is 2.
8/12 = 2/3 by dividing the numerator and denominator by their HCF which is 4
The GCF is 12.
The HCF is 1.
First you would need to break the numbers into their prime factors. In this case we have: 8 = 2x2x2 12 = 2x2x3 The next step is to identify any common prime factors. In this case, both numbers have two 2s as prime factors. Multiply these together and you get: 2x2=4 Thus the hcf of 8 and 12 is 4.