What is 85/42 Divided By 1/2

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

• Rewrite the Division as Multiplication by the Reciprocal:

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

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

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

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

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

The following animation demonstrates the divide-by,