What is 18/81 Divided By 4/1

Solving $\frac{18}{81}\div\frac{4}{1}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{18}{81} \div \frac{4}{1} = \frac{18}{81} \times \frac{1}{4}$

• Multiply the Numerators: $18 \times 1 = 18$
• Multiply the Denominators: $81 \times 4 = 324$
• Form the New Fraction: $\frac{18}{81} \times \frac{4}{1} = \frac{18}{324}$

Let's Simplify $\frac{18}{324}$

• Find the Greatest Common Divisor (GCD) of $18$ and $324$. The GCD of $18$ and $324$ is $18$.
• Divide both the numerator and the denominator by the GCD:$\frac{18 \div 18}{324 \div 18} = \frac{1}{18}$

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

The following animation demonstrates the divide-by,