Answer
$\frac{7}{10}$
Work Step by Step
First, you must get a common denominator, and in this case, it will be 10. Now you must make both fractions have a denominator of 10.
$\frac{2}{5}$=$\frac{4}{10}$. Now just add the numerators, and you will get your answer of $\frac{7}{10}$.
