What is 81/18 Divided By 5/4

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

• Rewrite the Division as Multiplication by the Reciprocal:

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

• Multiply the Numerators: $81 \times 4 = 324$
• Multiply the Denominators: $18 \times 5 = 90$
• Form the New Fraction: $\frac{81}{18} \times \frac{5}{4} = \frac{324}{90}$

Let's Simplify $\frac{324}{90}$

• Find the Greatest Common Divisor (GCD) of $324$ and $90$. The GCD of $324$ and $90$ is $18$.
• Divide both the numerator and the denominator by the GCD:$\frac{324 \div 18}{90 \div 18} = \frac{18}{5}$

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

The following animation demonstrates the divide-by,