What is 81/45 Divided By 8/4

Solving $\frac{81}{45}\div\frac{8}{4}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{45} \div \frac{8}{4} = \frac{81}{45} \times \frac{4}{8}$

• Multiply the Numerators: $81 \times 4 = 324$
• Multiply the Denominators: $45 \times 8 = 360$
• Form the New Fraction: $\frac{81}{45} \times \frac{8}{4} = \frac{324}{360}$

Let's Simplify $\frac{324}{360}$

• Find the Greatest Common Divisor (GCD) of $324$ and $360$. The GCD of $324$ and $360$ is $36$.
• Divide both the numerator and the denominator by the GCD:$\frac{324 \div 36}{360 \div 36} = \frac{9}{10}$

Answer $\frac{81}{45}\div\frac{8}{4} = \frac{9}{10}$

The following animation demonstrates the divide-by,