Question

1. $9 \div \frac{4}{9}$

Explanation:

Step1: Rewrite division as multiplication

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

Step2: Multiply the numerators

$9 \times 9 = 81$

Step3: Keep the denominator

The denominator remains 4, so we get $\frac{81}{4}$

Step4: Convert to mixed number (optional)

$\frac{81}{4} = 20\frac{1}{4}$

Answer:

$\frac{81}{4}$ or $20\frac{1}{4}$