What is 85/42 Divided By 5/2

Solving $\frac{85}{42}\div\frac{5}{2}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{85}{42} \div \frac{5}{2} = \frac{85}{42} \times \frac{2}{5}$

• Multiply the Numerators: $85 \times 2 = 170$
• Multiply the Denominators: $42 \times 5 = 210$
• Form the New Fraction: $\frac{85}{42} \times \frac{5}{2} = \frac{170}{210}$

Let's Simplify $\frac{170}{210}$

• Find the Greatest Common Divisor (GCD) of $170$ and $210$. The GCD of $170$ and $210$ is $10$.
• Divide both the numerator and the denominator by the GCD:$\frac{170 \div 10}{210 \div 10} = \frac{17}{21}$

Answer $\frac{85}{42}\div\frac{5}{2} = \frac{17}{21}$

The following animation demonstrates the divide-by,