Answer
$ \frac{4}{5}$
Work Step by Step
$ \frac{1}{5}+ \frac{3}{5}$
The fractions share a common denominator. To add the two fractions, add the numerators together.
$ \frac{1}{5}+ \frac{3}{5}= \frac{1+3}{5}= \frac{4}{5}$
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