What is 42/85 Divided By 2/1

Solving $\frac{42}{85}\div\frac{2}{1}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{42}{85} \div \frac{2}{1} = \frac{42}{85} \times \frac{1}{2}$

• Multiply the Numerators: $42 \times 1 = 42$
• Multiply the Denominators: $85 \times 2 = 170$
• Form the New Fraction: $\frac{42}{85} \times \frac{2}{1} = \frac{42}{170}$

Let's Simplify $\frac{42}{170}$

• Find the Greatest Common Divisor (GCD) of $42$ and $170$. The GCD of $42$ and $170$ is $2$.
• Divide both the numerator and the denominator by the GCD:$\frac{42 \div 2}{170 \div 2} = \frac{21}{85}$

Answer $\frac{42}{85}\div\frac{2}{1} = \frac{21}{85}$

The following animation demonstrates the divide-by,