8. \( 15 \frac{1}{4} \cdot 2 \frac{6}{7} = ? \)

\( 15 \frac{1}{4} \cdot 2 \frac{6}{7} = \frac{61}{4} \cdot \frac{20}{7} = \frac{1220}{28} = 43 \frac{16}{28} = 43 \frac{4}{7} \)