What is 72/42 Divided By 1/9

Solving $\frac{72}{42}\div\frac{1}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{72}{42} \div \frac{1}{9} = \frac{72}{42} \times \frac{9}{1}$

• Multiply the Numerators: $72 \times 9 = 648$
• Multiply the Denominators: $42 \times 1 = 42$
• Form the New Fraction: $\frac{72}{42} \times \frac{1}{9} = \frac{648}{42}$

Let's Simplify $\frac{648}{42}$

• Find the Greatest Common Divisor (GCD) of $648$ and $42$. The GCD of $648$ and $42$ is $6$.
• Divide both the numerator and the denominator by the GCD:$\frac{648 \div 6}{42 \div 6} = \frac{108}{7}$

Answer $\frac{72}{42}\div\frac{1}{9} = \frac{108}{7}$

The following animation demonstrates the divide-by,