# What is 1/5 + 2/7?

Oct 1, 2015

$\frac{17}{35}$

#### Explanation:

To be able to add them, make both numbers have the same denominator.

$\frac{1}{5} + \frac{2}{7}$
$= \frac{1}{5} \left(\frac{7}{7}\right) + \frac{2}{7} \left(\frac{5}{5}\right)$
$= \frac{7}{35} + \frac{10}{35}$
$= \frac{7 + 10}{35}$
$= \textcolor{b l u e}{\frac{17}{35}}$