Помогите!!!! Пожалуйста!!! Очень срочно!!!

$(1 \frac{1}{12}+ 1\frac{1}{4})* 1\frac{19}{56}+2 \frac{5}{8} *1 \frac{3}{7}*1 \frac{1}{9}$ = $( \frac{13}{12} + \frac{5}{4} )* \frac{75}{56} + \frac{21}{8} * \frac{10}{7}* \frac{10}{9} = (\frac{13}{12} + \frac{15}{12})+ \frac{75}{56} + \frac{21*10*10}{8*7*9}$ = $\frac{13+15}{12}* \frac{75}{56}+ \frac{3*5*10}{4*9}= \frac{28}{12}* \frac{75}{56} + \frac{150}{36} = \frac{28*75}{12*56}+ \frac{75}{18}= \frac{4*75}{12*8} + \frac{75}{18}$ = $\frac{75}{24} + \frac{75}{18} = \frac{1350}{432} + \frac{1800}{432}= \frac{1350+1800}{432} = \frac{3150}{432} = \frac{1575}{216} =7,29$