Math Problem Solver

\[ \frac{2}{8} - \frac{1}{2} = - \frac{1}{4} = -0.25 \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{2}{8}\) and \(\frac{-1}{2}\) is \(8\). \[ \begin{aligned} \frac{2}{8} - \frac{1}{2} &= \frac{2 \cdot 1}{8 \cdot 1} + \frac{-1 \cdot 4}{2 \cdot 4} \\ &= \frac{2 + -4}{8} \\ &= \frac{-2}{8} \\&= - \frac{1}{4} \end{aligned} \]