What is 81/45 Divided By 2/8

Solving $\frac{81}{45}\div\frac{2}{8}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{45} \div \frac{2}{8} = \frac{81}{45} \times \frac{8}{2}$

• Multiply the Numerators: $81 \times 8 = 648$
• Multiply the Denominators: $45 \times 2 = 90$
• Form the New Fraction: $\frac{81}{45} \times \frac{2}{8} = \frac{648}{90}$

Let's Simplify $\frac{648}{90}$

• Find the Greatest Common Divisor (GCD) of $648$ and $90$. The GCD of $648$ and $90$ is $18$.
• Divide both the numerator and the denominator by the GCD:$\frac{648 \div 18}{90 \div 18} = \frac{36}{5}$

Answer $\frac{81}{45}\div\frac{2}{8} = \frac{36}{5}$

The following animation demonstrates the divide-by,