To calculate $\frac{1}{3}$ of 9:

$\frac{1}{3} \times 9 = \frac{9}{3} = 3$

The result is 3.

Would you like a detailed explanation or have any questions? Here are five related questions to practice:

1. What is $\frac{1}{4}$ of 12?
2. How do you calculate $\frac{2}{3}$ of 15?
3. If $\frac{1}{5}$ of a number is 6, what is the number?
4. Simplify $\frac{2}{3} \times 18$.
5. What is $\frac{1}{2}$ of $\frac{1}{3}$ of 9?

Tip: To find a fraction of a number, multiply the fraction by the number.