What is 72/81 Divided By 4/9

Solving $\frac{72}{81}\div\frac{4}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{72}{81} \div \frac{4}{9} = \frac{72}{81} \times \frac{9}{4}$

• Multiply the Numerators: $72 \times 9 = 648$
• Multiply the Denominators: $81 \times 4 = 324$
• Form the New Fraction: $\frac{72}{81} \times \frac{4}{9} = \frac{648}{324}$

Let's Simplify $\frac{648}{324}$

• Find the Greatest Common Divisor (GCD) of $648$ and $324$. The GCD of $648$ and $324$ is $324$.
• Divide both the numerator and the denominator by the GCD:$\frac{648 \div 324}{324 \div 324} = \frac{2}{1}$

Answer $\frac{72}{81}\div\frac{4}{9} = \frac{2}{1}$

The following animation demonstrates the divide-by,