(3ц1/3+5ц1/6)•2/5-2ц3/4:(1ц1/2-2/5

Решите задачу:

$(3 \frac{1}{3} +5 \frac{1}{6} )* \frac{2}{5} -2 \frac{3}{4}:(1 \frac{1}{2}- \frac{2}{5} )= (3 \frac{2}{6} +5 \frac{1}{6} )* \frac{2}{5} - \frac{11}{4} :(1 \frac{5}{10}- \frac{4}{10} )= \\ =8 \frac{3}{6} * \frac{2}{5} - \frac{11}{4} :1 \frac{1}{10} =8 \frac{1}{2} * \frac{2}{5} - \frac{11}{4} : \frac{11}{10} = \frac{17}{2} * \frac{2}{5} -\frac{11}{4}* \frac{10}{11}= \\ = \frac{17}{5} - \frac{5}{2} = \frac{34-25}{10}= \frac{9}{10} ;$