$\"\"$

First factor the numerator and denominator.

17 = 1 · 17 \ \

51 = 3 · 17 \ \

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

GCF = 17

$\"\"$

Divide the numerator and the denominator by GCF.

$\"\"$

$\"\"$ (Simplify)

$\"\"$

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