Answer
$13 \frac{13}{20}$
Work Step by Step
Write the fractions in the improper form:
$\frac{21}{10} \times \frac{13}{2}$
Multiply numerators and denominators to find answer:
$\frac{21}{10} \times \frac{13}{2} = \frac{273}{20}$ --> $13\frac{13}{20}$