e) -\(\frac{11}{12}\) - \(-\frac{8}{9}\);

e) -\(\frac{11}{12}\) - \(-\frac{8}{9}\) = -\(\frac{11}{12}\) + \(\frac{8}{9}\) = -\(\frac{11 * 3}{12 * 3}\) + \(\frac{8 * 4}{9 * 4}\) = -\(\frac{33}{36}\) + \(\frac{32}{36}\) = \(\frac{-33 + 32}{36}\) = -\(\frac{1}{36}\)