Math Problem Solver

\[ -1 - \frac{1}{2} = - \frac{3}{2} = -1.5 \]

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