Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
\[\frac{71}{3}-\frac{21}{4}\times \frac{21\times 3}{5\times 4}\]
Simplify \(21\times 3\) to \(63\).
\[\frac{71}{3}-\frac{21}{4}\times \frac{63}{5\times 4}\]
Simplify \(5\times 4\) to \(20\).
\[\frac{71}{3}-\frac{21}{4}\times \frac{63}{20}\]
Use this rule: \(\frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}\).
\[\frac{71}{3}-\frac{21\times 63}{4\times 20}\]
Simplify \(21\times 63\) to \(1323\).
\[\frac{71}{3}-\frac{1323}{4\times 20}\]
Simplify \(4\times 20\) to \(80\).
\[\frac{71}{3}-\frac{1323}{80}\]
Simplify.
\[\frac{1711}{240}\]
Decimal Form: 7.129167
1711/240
