г) 11\(\frac{1}{2}\) - 3\(\frac{11}{18}\);

11\(\frac{1}{2}\) - 3\(\frac{11}{18}\) = (11-3) + (\(\frac{1}{2}\) - \(\frac{11}{18}\)) = 8 + (\(\frac{1 \cdot 9}{2 \cdot 9}\) - \(\frac{11}{18}\)) = 8 + \(\frac{9}{18}\) - \(\frac{11}{18}\) = 8 - \(\frac{2}{18}\) = 8 - \(\frac{1}{9}\) = 7 + 1 - \(\frac{1}{9}\) = 7 + \(\frac{9}{9}\) - \(\frac{1}{9}\) = 7 + \(\frac{8}{9}\) = 7\(\frac{8}{9}\)

Ответ: 7\(\frac{8}{9}\)