📋 stepwise solution
Step 1: Write the fractions
\[
\frac{a}{b} \times \frac{c}{d}
\]
Step 2: Multiply numerators and denominators
\[
\frac{a \times c}{b \times d}
\]
Step 3: Perform the multiplication
\[
\frac{?}{?}
\]
Step 4: Simplify to lowest terms
\[
\frac{N}{D}
\]
Step 5: Convert improper fraction to mixed number
\[
\frac{N}{D} = W\frac{R}{D}
\]
✅ final result:
\[ \text{—} \]