Risolvi la seguente espressione

$$1-\dfrac{2}{9}:\dfrac{1}{3}+\left( \dfrac{1}{2}+\dfrac{1}{3}\right) :\dfrac{5}{3}-\left( 1-\dfrac{1}{3}-\dfrac{1}{4}\right) \cdot \dfrac{1}{5}=$$

$$1-\dfrac{2}{9}\cdot 3+\left( \dfrac{3+2}{6}\right) \cdot \dfrac{3}{5}-\left( \dfrac{12-4-3}{12}\right) -\dfrac{1}{5}=$$

$$1-\dfrac{2}{3}+\dfrac{5}{6}\cdot \dfrac{3}{5}-\dfrac{5}{12}\cdot \dfrac{1}{5}=$$

$$1-\dfrac{2}{3}+\dfrac{1}{2}-\dfrac{1}{12}=$$

$$\dfrac{12-8+6-1}{12}=$$

$$\dfrac{9}{12}=$$

$$\dfrac{3}{4}$$