Найдите значение выражения: (3 1/4+2 1/6):2 3/5-2/3:4/9.

\[\left( 3\frac{1^{\backslash 3}}{4} + 2\frac{1^{\backslash 2}}{6} \right)\ :2\frac{3}{5} - \frac{2}{3}\ :\frac{4}{9} =\]

\[= 5\frac{3 + 2}{12}\ :\frac{13}{5} - \frac{2 \cdot 9}{3 \cdot 4} =\]

\[= 5\frac{5}{12}\ :\frac{13}{5} - \frac{3}{2} =\]

\[= \frac{65 \cdot 5}{12 \cdot 13} - \frac{3}{2} = \frac{25}{12} - \frac{18}{12} = \frac{7}{12}\]