Б) 11/17 : 9 - 2/11 * 1

Решение:

1. \( \frac{11}{17} : 9 = \frac{11}{17} \times \frac{1}{9} = \frac{11}{153} \)
2. \( \frac{2}{11} \times 1 = \frac{2}{11} \)
3. \( \frac{11}{153} - \frac{2}{11} = \frac{11 \times 11 - 2 \times 153}{1683} = \frac{121 - 306}{1683} = \frac{-185}{1683} \)

Ответ: \( -\frac{185}{1683} \)