What is negative one over two times four

$$\begin{array}{l} \frac{-1}{-2}\times4\\\\ \frac{-1}{-2}\times\frac{4}{1}\\\\ \frac{-1\times4}{-2\times1}\\\\ \frac{-4}{-2}\\\\ \frac{+4}{+2}\\\\ \frac{4}{2}\\\\ \frac{2}{1}\\\\ 2 \end{array}$$