What is 81/18 Divided By 9/8

Solving $\frac{81}{18}\div\frac{9}{8}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{18} \div \frac{9}{8} = \frac{81}{18} \times \frac{8}{9}$

• Multiply the Numerators: $81 \times 8 = 648$
• Multiply the Denominators: $18 \times 9 = 162$
• Form the New Fraction: $\frac{81}{18} \times \frac{9}{8} = \frac{648}{162}$

Let's Simplify $\frac{648}{162}$

• Find the Greatest Common Divisor (GCD) of $648$ and $162$. The GCD of $648$ and $162$ is $162$.
• Divide both the numerator and the denominator by the GCD:$\frac{648 \div 162}{162 \div 162} = \frac{4}{1}$

Answer $\frac{81}{18}\div\frac{9}{8} = \frac{4}{1}$

The following animation demonstrates the divide-by,