What is 72/45 Divided By 4/9

Solving $\frac{72}{45}\div\frac{4}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{72}{45} \div \frac{4}{9} = \frac{72}{45} \times \frac{9}{4}$

• Multiply the Numerators: $72 \times 9 = 648$
• Multiply the Denominators: $45 \times 4 = 180$
• Form the New Fraction: $\frac{72}{45} \times \frac{4}{9} = \frac{648}{180}$

Let's Simplify $\frac{648}{180}$

• Find the Greatest Common Divisor (GCD) of $648$ and $180$. The GCD of $648$ and $180$ is $36$.
• Divide both the numerator and the denominator by the GCD:$\frac{648 \div 36}{180 \div 36} = \frac{18}{5}$

Answer $\frac{72}{45}\div\frac{4}{9} = \frac{18}{5}$

The following animation demonstrates the divide-by,