Math Problem Solver

\[ \frac{2}{5} + \frac{2}{8} = \frac{13}{20} = 0.65 \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{2}{5}\) and \(\frac{2}{8}\) is \(40\). \[ \begin{aligned} \frac{2}{5} + \frac{2}{8} &= \frac{2 \cdot 8}{5 \cdot 8} + \frac{2 \cdot 5}{8 \cdot 5} \\ &= \frac{16 + 10}{40} \\ &= \frac{26}{40} \\&= \frac{13}{20} \end{aligned} \]