Math Problem Solver

\[ \frac{1}{2} - \frac{1}{8} = \frac{3}{8} = 0.375 \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{1}{2}\) and \(\frac{-1}{8}\) is \(8\). \[ \begin{aligned} \frac{1}{2} - \frac{1}{8} &= \frac{1 \cdot 4}{2 \cdot 4} + \frac{-1 \cdot 1}{8 \cdot 1} \\ &= \frac{4 + -1}{8} \\ &= \frac{3}{8} \end{aligned} \]