What is 18/81 Divided By 5/4

Solving $\frac{18}{81}\div\frac{5}{4}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{18}{81} \div \frac{5}{4} = \frac{18}{81} \times \frac{4}{5}$

• Multiply the Numerators: $18 \times 4 = 72$
• Multiply the Denominators: $81 \times 5 = 405$
• Form the New Fraction: $\frac{18}{81} \times \frac{5}{4} = \frac{72}{405}$

Let's Simplify $\frac{72}{405}$

• Find the Greatest Common Divisor (GCD) of $72$ and $405$. The GCD of $72$ and $405$ is $9$.
• Divide both the numerator and the denominator by the GCD:$\frac{72 \div 9}{405 \div 9} = \frac{8}{45}$

Answer $\frac{18}{81}\div\frac{5}{4} = \frac{8}{45}$

The following animation demonstrates the divide-by,