What is 18/81 Divided By 9/7

Solving $\frac{18}{81}\div\frac{9}{7}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{18}{81} \div \frac{9}{7} = \frac{18}{81} \times \frac{7}{9}$

• Multiply the Numerators: $18 \times 7 = 126$
• Multiply the Denominators: $81 \times 9 = 729$
• Form the New Fraction: $\frac{18}{81} \times \frac{9}{7} = \frac{126}{729}$

Let's Simplify $\frac{126}{729}$

• Find the Greatest Common Divisor (GCD) of $126$ and $729$. The GCD of $126$ and $729$ is $9$.
• Divide both the numerator and the denominator by the GCD:$\frac{126 \div 9}{729 \div 9} = \frac{14}{81}$

Answer $\frac{18}{81}\div\frac{9}{7} = \frac{14}{81}$

The following animation demonstrates the divide-by,