\[\boxed{\text{4.\ 364}}\]
\[\frac{6,93 \cdot 5}{8,5 \cdot 3} + \frac{6,48 \cdot 7}{11,9 \cdot 6} =\]
\[= \frac{2,31}{1,7} + \frac{1,08}{1,7} = \frac{2,31 + 1,08}{1,7} =\]
\[= \frac{3,39}{1,7} = \frac{339}{170} = 1\frac{169}{170}\]