Exercise 64 Page 180

To divide

\frac{3}{8}

by

\frac{2}{3},

we must recall that dividing by a fraction is the same as multiplying by the reciprocal of the fraction.

\frac{3}{8} \div \frac{1}{4} = \frac{3}{8} \cdot \frac{4}{1}

To multiply fractions, we multiply numerator by numerator and denominator by denominator.

\frac{3}{8} \cdot \frac{4}{1}

Multiply fractions

\frac{3 \cdot 4}{8 \cdot 1}

\frac{1 2}{8}

$\frac{a}{b} = \frac{a / 4}{b / 4}$

\frac{3}{2}