Math Problem Solver

\[ 12 - \frac{4}{2} - 5 = 5 \]

The sum can be computed by rewriting each term over a common denominator, where the least common denominator of \(\frac{12}{1}\), \(\frac{-4}{2}\), and \(\frac{-5}{1}\) is \(2\). \[ \begin{aligned} 12 - \frac{4}{2} - 5 &= \frac{12 \cdot 2}{1 \cdot 2} + \frac{-4 \cdot 1}{2 \cdot 1} + \frac{-5 \cdot 2}{1 \cdot 2} \\ &= \frac{24 + -4 + -10}{2} \\ &= \frac{10}{2} \\&= 5 \end{aligned} \]