Question

what is $\frac{1}{3}$ of 21?

Explanation:

Step1: Recall the meaning of "of" in math

"Of" means multiplication. So we need to calculate $\frac{1}{3} \times 21$.

Step2: Perform the multiplication

$\frac{1}{3} \times 21=\frac{21}{3}=7$

Answer:

7