\[\boxed{\text{5.396.}}\]
\[\textbf{а)}\ \frac{3}{4} = \frac{9}{12} > \frac{7}{12}\]
\[\textbf{б)}\ \frac{4}{9} < \frac{5}{11}\]
\[\ \frac{4}{9} = \frac{44}{99};\ \ \frac{5}{11} = \frac{45}{99}\text{.\ }\]
\[\textbf{в)}\ \frac{3}{5} < \frac{2}{3}\ \]
\[\frac{3}{5} = \frac{9}{15};\ \ \frac{2}{3} = \frac{10}{15}\text{.\ }\]
\[\textbf{г)}\ \frac{13}{24} < \frac{7}{12} = \frac{14}{24}\text{.\ }\]