Introductory Algebra for College Students (7th Edition)

$\frac{3}{28}$
$\frac{3}{7}$ . $\frac{1}{4}$ Multiply numerators and multiply denominators $\frac{3}{7}$ . $\frac{1}{4}$= $\frac{3*1}{7*4}$ = $\frac{3}{28}$