ДАЮ 50 БАЛІВ!!!! -12 1/2+(-1/6)

- 12 \frac{1}{2} + ( - \frac{1}{6} ) = - 12 \frac{1}{2} - \frac{1}{6} = \\ - 12 \frac{6}{12} - \frac{2}{12} = - 12 \frac{8}{12} = - 12 \frac{2}{3}