Math Problem Solver

\[ \frac{-3}{8} - \frac{7}{11} = - \frac{89}{88} = -1.011\overline{36} \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{-3}{8}\) and \(\frac{-7}{11}\) is \(88\). \[ \begin{aligned} \frac{-3}{8} - \frac{7}{11} &= \frac{-3 \cdot 11}{8 \cdot 11} + \frac{-7 \cdot 8}{11 \cdot 8} \\ &= \frac{-33 + -56}{88} \\ &= \frac{-89}{88} \end{aligned} \]