What is 81/39 Divided By 7/9

Solving $\frac{81}{39}\div\frac{7}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{39} \div \frac{7}{9} = \frac{81}{39} \times \frac{9}{7}$

• Multiply the Numerators: $81 \times 9 = 729$
• Multiply the Denominators: $39 \times 7 = 273$
• Form the New Fraction: $\frac{81}{39} \times \frac{7}{9} = \frac{729}{273}$

Let's Simplify $\frac{729}{273}$

• Find the Greatest Common Divisor (GCD) of $729$ and $273$. The GCD of $729$ and $273$ is $3$.
• Divide both the numerator and the denominator by the GCD:$\frac{729 \div 3}{273 \div 3} = \frac{243}{91}$

Answer $\frac{81}{39}\div\frac{7}{9} = \frac{243}{91}$

The following animation demonstrates the divide-by,