What is 81/70 Divided By 2/8

Solving $\frac{81}{70}\div\frac{2}{8}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{70} \div \frac{2}{8} = \frac{81}{70} \times \frac{8}{2}$

• Multiply the Numerators: $81 \times 8 = 648$
• Multiply the Denominators: $70 \times 2 = 140$
• Form the New Fraction: $\frac{81}{70} \times \frac{2}{8} = \frac{648}{140}$

Let's Simplify $\frac{648}{140}$

• Find the Greatest Common Divisor (GCD) of $648$ and $140$. The GCD of $648$ and $140$ is $4$.
• Divide both the numerator and the denominator by the GCD:$\frac{648 \div 4}{140 \div 4} = \frac{162}{35}$

Answer $\frac{81}{70}\div\frac{2}{8} = \frac{162}{35}$

The following animation demonstrates the divide-by,