Answer
$\frac{3}{4}$ $\times$ $\frac{8}{9}$ $\times$ $\frac{12}{20}$ = $\frac{2}{5}$
Work Step by Step
$\frac{3}{4}$ $\times$ $\frac{8}{9}$ $\times$ $\frac{12}{20}$ =
Multiply the numerators by each other, and multiply the denominators by each other
$\frac{3\ \times\ 8\ \times\ 12}{4\ \times\ 9\ \times\ 20}$ =
Factor the numerator and the denominator
$\frac{3\ \times\ 2\ \times\ 2\ \times\ 2\ \times\ 2\ \times\ 2\ \times 3}{2\times2\times3\times3\times2\times2\times5}$ =
Cancel the common factors between the numerator and the denominator to obtain:
$\frac{2}{5}$