What is 81/27 Divided By 7/9

Solving $\frac{81}{27}\div\frac{7}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{27} \div \frac{7}{9} = \frac{81}{27} \times \frac{9}{7}$

• Multiply the Numerators: $81 \times 9 = 729$
• Multiply the Denominators: $27 \times 7 = 189$
• Form the New Fraction: $\frac{81}{27} \times \frac{7}{9} = \frac{729}{189}$

Let's Simplify $\frac{729}{189}$

• Find the Greatest Common Divisor (GCD) of $729$ and $189$. The GCD of $729$ and $189$ is $27$.
• Divide both the numerator and the denominator by the GCD:$\frac{729 \div 27}{189 \div 27} = \frac{27}{7}$

Answer $\frac{81}{27}\div\frac{7}{9} = \frac{27}{7}$

The following animation demonstrates the divide-by,