### Home > CC2 > Chapter 2 > Lesson 2.2.6 > Problem2-102

2-102.

Below is a fast mental-math technique to find $\frac{5}{6}\cdot24$. Remember that $\frac{5}{6}\cdot24=5\cdot\frac{1}{6}\cdot24$.

1. What is one sixth of $24$?

$\frac{1}{6}\cdot24=\frac{24}{6}$

2. What is five times that quantity?

Multiply $5$ by $4$.
$5·4=20$

3. What is $\frac{5}{6}\cdot24$?

Multiply the fraction by $24$. You should get the same answer as you found in part (b).