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Find GCF for numbers 8 and 12:
The prime factors of 8 are:
8 = 2×2×2
The prime factors of 12 are:
12 = 2×2×3
So the common prime factors of 8 and 12 are:
gcf(8,12) = 2×2 = 4
So 8/12 fraction, can be reduced to 2/3:
8 / 12 = (8/4) / (12/4) = 2 / 3