What is 81/42 Divided By 8/4

Solving $\frac{81}{42}\div\frac{8}{4}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{42} \div \frac{8}{4} = \frac{81}{42} \times \frac{4}{8}$

• Multiply the Numerators: $81 \times 4 = 324$
• Multiply the Denominators: $42 \times 8 = 336$
• Form the New Fraction: $\frac{81}{42} \times \frac{8}{4} = \frac{324}{336}$

Let's Simplify $\frac{324}{336}$

• Find the Greatest Common Divisor (GCD) of $324$ and $336$. The GCD of $324$ and $336$ is $12$.
• Divide both the numerator and the denominator by the GCD:$\frac{324 \div 12}{336 \div 12} = \frac{27}{28}$

Answer $\frac{81}{42}\div\frac{8}{4} = \frac{27}{28}$

The following animation demonstrates the divide-by,