Answer
$6$
Work Step by Step
Convert each mixed number to an improper fraction:
$=(\frac{4(3)+3}{4})(\frac{5(1)+3}{5})
\\=(\frac{15}{4})(\frac{8}{5})$
Cancel the common factors:
$\require{cancel}
=(\frac{\cancel{15}3}{\cancel{4}})(\frac{\cancel{8}2}{\cancel{5}})$
Multiply the numerators together and the denominators together:
$=\dfrac{3(2)}{1(1)}
\\=\dfrac{6}{1}
\\=6$
