\[\frac{a^{\backslash a} - \frac{4a - 4}{a}}{\frac{2}{a} - 1^{\backslash a}} = \frac{\frac{a^{2} - 4a + 4}{a}}{\frac{2 - a}{a}} =\]
\[= - (a - 2) = 2 - a.\]