52. \(-7\frac{5}{12} - (-1\frac{5}{6})\)

Решение:

\(-7\frac{5}{12} - (-1\frac{5}{6}) = -\frac{89}{12} + \frac{11}{6} = -\frac{89}{12} + \frac{11 \times 2}{6 \times 2} = -\frac{89}{12} + \frac{22}{12} = \frac{-89 + 22}{12} = -\frac{67}{12}\)

Ответ: -\(\frac{67}{12}\)