What is 81/39 Divided By 3/9

Solving $\frac{81}{39}\div\frac{3}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{39} \div \frac{3}{9} = \frac{81}{39} \times \frac{9}{3}$

• Multiply the Numerators: $81 \times 9 = 729$
• Multiply the Denominators: $39 \times 3 = 117$
• Form the New Fraction: $\frac{81}{39} \times \frac{3}{9} = \frac{729}{117}$

Let's Simplify $\frac{729}{117}$

• Find the Greatest Common Divisor (GCD) of $729$ and $117$. The GCD of $729$ and $117$ is $9$.
• Divide both the numerator and the denominator by the GCD:$\frac{729 \div 9}{117 \div 9} = \frac{81}{13}$

Answer $\frac{81}{39}\div\frac{3}{9} = \frac{81}{13}$

The following animation demonstrates the divide-by,