Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
\[\frac{16\times 5}{21\times 2}\]
Simplify \(16\times 5\) to \(80\).
\[\frac{80}{21\times 2}\]
Simplify \(21\times 2\) to \(42\).
\[\frac{80}{42}\]
Simplify.
\[\frac{40}{21}\]
Convert to mixed fraction.
\[1\frac{19}{21}\]
Decimal Form: 1.904762
mixed(1,19/21)
