# How do you simplify 7/(3b) - 3/b?

Aug 1, 2016

$\frac{- 2}{3 b}$

#### Explanation:

Find a common denominator and change to equivalent fractions.

Common denominator = $3 b$

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

Now we have $\frac{7}{3 b} - \frac{9}{3 b} = \frac{7 - 9}{3 b}$

=$\frac{- 2}{3 b}$