What is 81/45 Divided By 4/2

Solving $\frac{81}{45}\div\frac{4}{2}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{45} \div \frac{4}{2} = \frac{81}{45} \times \frac{2}{4}$

• Multiply the Numerators: $81 \times 2 = 162$
• Multiply the Denominators: $45 \times 4 = 180$
• Form the New Fraction: $\frac{81}{45} \times \frac{4}{2} = \frac{162}{180}$

Let's Simplify $\frac{162}{180}$

• Find the Greatest Common Divisor (GCD) of $162$ and $180$. The GCD of $162$ and $180$ is $18$.
• Divide both the numerator and the denominator by the GCD:$\frac{162 \div 18}{180 \div 18} = \frac{9}{10}$

Answer $\frac{81}{45}\div\frac{4}{2} = \frac{9}{10}$

The following animation demonstrates the divide-by,