\[\boxed{\mathbf{727\ (727).}\mathbf{\ }Еуроки\ - \ ДЗ\ без\ мороки}\]
\[\left( 6,8 - 5\frac{5}{9} \right)\ :\left( 2\frac{13}{30} - 2\frac{1}{12} \right) \cdot\]
\[\cdot 3,6 = \left( 6\frac{8}{10} - 5\frac{5}{9} \right)\ :\]
\[:\left( 2\frac{26}{60} - 2\frac{5}{60} \right) \cdot \frac{36}{10} =\]