# How do you write the ratio of 3 1/2 to 1 2/3?

$3 \frac{1}{2} : 1 \frac{2}{3} = \frac{7}{2} : \frac{5}{3} = \frac{7}{2} \times \frac{3}{5} = \frac{21}{10}$
$3 \frac{1}{2} : 1 \frac{2}{3} = \frac{7}{2} : \frac{5}{3} = \frac{7}{2} \times \frac{3}{5} = \frac{21}{10}$