Answer
$\dfrac{4}{7}$
Work Step by Step
Reduce a number to its lowest terms by factoring the numerator and the denominator and then cancelling common factors:
$\require{cancel}=\dfrac{4(6)}{7(6)}
\\=\dfrac{4\cancel{(6)}}{7\cancel{(6)}}
\\=\dfrac{4}{7}$