(4 5/12:44 1/6-2,6):7,5-2,25×2 4/9

[latex]\left(4\frac5{12}:44\frac16-2,6\right):7,5-2,25\cdot2\frac49=\left(\frac{53}{12}:\frac{265}6-2\frac6{10}\right):7\frac12-2\frac14\cdot2\frac49=\\=\left(\frac{53}{12}\cdot\frac6{265}-\frac{26}{10}\right):\frac{15}2-\frac94\cdot\frac{22}9=\left(\frac1{10}-\frac{26}{10}\right)\cdot\frac2{15}-\frac{11}2=-\frac{25}{10}\cdot\frac2{15}-\frac{11}2=\\=-\frac13-\frac{11}2=-\frac26-\frac{33}6=-\frac{35}6=-5\frac56[/latex]