What is 91/81 Divided By 4/8

Solving $\frac{91}{81}\div\frac{4}{8}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{91}{81} \div \frac{4}{8} = \frac{91}{81} \times \frac{8}{4}$

• Multiply the Numerators: $91 \times 8 = 728$
• Multiply the Denominators: $81 \times 4 = 324$
• Form the New Fraction: $\frac{91}{81} \times \frac{4}{8} = \frac{728}{324}$

Let's Simplify $\frac{728}{324}$

• Find the Greatest Common Divisor (GCD) of $728$ and $324$. The GCD of $728$ and $324$ is $4$.
• Divide both the numerator and the denominator by the GCD:$\frac{728 \div 4}{324 \div 4} = \frac{182}{81}$

Answer $\frac{91}{81}\div\frac{4}{8} = \frac{182}{81}$

The following animation demonstrates the divide-by,