Сократите дроби в пункте б.

\[ \text{б)} \ \begin{aligned} &\frac{2}{4}=\frac{1}{2}, \ \frac{3}{9}=\frac{1}{3}, \ \frac{4}{16}=\frac{1}{4}, \ \frac{9}{45}=\frac{1}{5}, \ \frac{11}{66}=\frac{1}{6}, \ \frac{5}{35}=\frac{1}{7}. \end{aligned} \]