What is 81/91 Divided By 4/9

Solving $\frac{81}{91}\div\frac{4}{9}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{81}{91} \div \frac{4}{9} = \frac{81}{91} \times \frac{9}{4}$

• Multiply the Numerators: $81 \times 9 = 729$
• Multiply the Denominators: $91 \times 4 = 364$
• Form the New Fraction: $\frac{81}{91} \times \frac{4}{9} = \frac{729}{364}$

Simplify - Since $\frac{729}{364}$​ is already in its simplest form (there are no common factors between $729$ and $364$ other than $1$), this is the final answer.

Answer $\frac{81}{91}\div\frac{4}{9} = \frac{729}{364}$

The following animation demonstrates the divide-by,