Math Problem Solver

\[ \frac{-8}{20} + \frac{-2}{57} = - \frac{124}{285} = -0.4\overline{350877192982456140} \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{-8}{20}\) and \(\frac{-2}{57}\) is \(1140\). \[ \begin{aligned} \frac{-8}{20} + \frac{-2}{57} &= \frac{-8 \cdot 57}{20 \cdot 57} + \frac{-2 \cdot 20}{57 \cdot 20} \\ &= \frac{-456 + -40}{1140} \\ &= \frac{-496}{1140} \\&= - \frac{124}{285} \end{aligned} \]