What is 91/81 Divided By 9/7

Solving $\frac{91}{81}\div\frac{9}{7}$

• Rewrite the Division as Multiplication by the Reciprocal:

$\frac{91}{81} \div \frac{9}{7} = \frac{91}{81} \times \frac{7}{9}$

• Multiply the Numerators: $91 \times 7 = 637$
• Multiply the Denominators: $81 \times 9 = 729$
• Form the New Fraction: $\frac{91}{81} \times \frac{9}{7} = \frac{637}{729}$

Simplify - Since $\frac{637}{729}$​ is already in its simplest form (there are no common factors between $637$ and $729$ other than $1$), this is the final answer.

Answer $\frac{91}{81}\div\frac{9}{7} = \frac{637}{729}$

The following animation demonstrates the divide-by,