What is 81/19 Divided By 3/9

Solving $\frac{81}{19}\div\frac{3}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{19} \div \frac{3}{9} = \frac{81}{19} \times \frac{9}{3}$

• Multiply the Numerators: $81 \times 9 = 729$
• Multiply the Denominators: $19 \times 3 = 57$
• Form the New Fraction: $\frac{81}{19} \times \frac{3}{9} = \frac{729}{57}$

Let's Simplify $\frac{729}{57}$

• Find the Greatest Common Divisor (GCD) of $729$ and $57$. The GCD of $729$ and $57$ is $3$.
• Divide both the numerator and the denominator by the GCD:$\frac{729 \div 3}{57 \div 3} = \frac{243}{19}$

Answer $\frac{81}{19}\div\frac{3}{9} = \frac{243}{19}$

The following animation demonstrates the divide-by,