What is 42/81 Divided By 8/4

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

• Rewrite the Division as Multiplication by the Reciprocal:

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

• Multiply the Numerators: $42 \times 4 = 168$
• Multiply the Denominators: $81 \times 8 = 648$
• Form the New Fraction: $\frac{42}{81} \times \frac{8}{4} = \frac{168}{648}$

Let's Simplify $\frac{168}{648}$

• Find the Greatest Common Divisor (GCD) of $168$ and $648$. The GCD of $168$ and $648$ is $24$.
• Divide both the numerator and the denominator by the GCD:$\frac{168 \div 24}{648 \div 24} = \frac{7}{27}$

Answer $\frac{42}{81}\div\frac{8}{4} = \frac{7}{27}$

The following animation demonstrates the divide-by,