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First factor the numerator and denominator.

5 = 1 · 5 \ \

100 = 2 · 2 · 5 · 5

The GCF is the product of the common prime factors in each term.

GCF = 5

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Divide the numerator and the denominator by GCF.

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$\"\"$ (Divide) $\"\"$

Simpliest form of the fraction $\"\"$ is $\"\"$ .