\[\boxed{\text{5.538.}}\]
\[\frac{10}{36} \rightarrow \frac{36}{10}\]
\[\frac{13}{65} \rightarrow \frac{65}{13};\]
\[\frac{31}{65} \rightarrow \frac{65}{31};\]
\[\frac{13}{134} \rightarrow \frac{134}{13};\]
\[\frac{17}{428} \rightarrow \frac{428}{17};\]
\[\frac{10}{4} \rightarrow \frac{4}{10};\]
\[\frac{36}{7} \rightarrow \frac{7}{36}.\]