[tex] \frac{ \frac{6}{5}:[( \frac{17}{40} + \frac{3}{5}- \frac{1}{200})]* \frac{17}{10} }{ \frac{5}{6} + \frac{4}{3} - \frac{53}{30} } + \frac{ \frac{19}{4}+ \frac{15}{2} }{33* \frac{7}{33} } *4[/tex]
[tex] \frac{ \frac{6}{5}:( \frac{85+120-1}{200} )* \frac{17}{10} }{ \frac{25+40-53}{30} } + \frac{ \frac{19+30}{4} }{7} *4=[/tex]
[tex] \frac{ \frac{6}{5}: \frac{51}{50} * \frac{17}{10} }{ \frac{2}{5} } + \frac{7}{4} *4= \frac{ \frac{6}{5}* \frac{50}{51} * \frac{17}{10} }{ \frac{2}{5} } +7=[/tex]
[tex] \frac{ \frac{6*50*17}{5*51*10} }{ \frac{2}{5} } +7=2* \frac{5}{2} +7=12[/tex]