Math Problem Solver

\[ \frac{3}{4} + \frac{1}{2} - \frac{3}{8} = \frac{7}{8} = 0.875 \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{3}{4}\), \(\frac{1}{2}\), and \(\frac{-3}{8}\) is \(8\). \[ \begin{aligned} \frac{3}{4} + \frac{1}{2} - \frac{3}{8} &= \frac{3 \cdot 2}{4 \cdot 2} + \frac{1 \cdot 4}{2 \cdot 4} + \frac{-3 \cdot 1}{8 \cdot 1} \\ &= \frac{6 + 4 + -3}{8} \\ &= \frac{7}{8} \end{aligned} \]