What is 72/42 Divided By 3/9

Solving $\frac{72}{42}\div\frac{3}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{72}{42} \div \frac{3}{9} = \frac{72}{42} \times \frac{9}{3}$

• Multiply the Numerators: $72 \times 9 = 648$
• Multiply the Denominators: $42 \times 3 = 126$
• Form the New Fraction: $\frac{72}{42} \times \frac{3}{9} = \frac{648}{126}$

Let's Simplify $\frac{648}{126}$

• Find the Greatest Common Divisor (GCD) of $648$ and $126$. The GCD of $648$ and $126$ is $18$.
• Divide both the numerator and the denominator by the GCD:$\frac{648 \div 18}{126 \div 18} = \frac{36}{7}$

Answer $\frac{72}{42}\div\frac{3}{9} = \frac{36}{7}$

The following animation demonstrates the divide-by,