Answer
$\dfrac{5}{6}$
Work Step by Step
Reduce a number to its lowest terms by factoring the numerator and the denominator and then cancelling common factors:
$\require{cancel}=\dfrac{5(42)}{6(42)}
\\=\dfrac{5\cancel{(42)}}{6\cancel{(42)}}
\\=\dfrac{5}{6}$