Помогите пожалуйста решить

$150+150* \frac{2}{15}=150+ \frac{15*10*2}{15}=150+ 20=170$ - дубов
$170* \frac{23}{34}= \frac{34*5*23}{34}=5*23=115$ - берез
$(150+170+115)* \frac{20}{87} =435* \frac{20}{87} = \frac{87*5*20}{87}=5*20=100$ - липы
$150+170+115+100=535$ - всего деревьев

$(1,02: \frac{1}{50}-7,26: \frac{11}{70}):3 \frac{1}{5}+0,4:0,36=$ $(1 \frac{2}{10}* \frac{50}{1}-7 \frac{26}{100}* \frac{70}{11})* \frac{15}{16}+ \frac{4}{10}* \frac{100}{36}=$ $(\frac{12}{10}* \frac{50}{1}- \frac{726}{100}* \frac{70}{11})* \frac{15}{16}+ \frac{4}{10}* \frac{100}{36}=$ $( \frac{12*5*10}{10*1}- \frac{66*11*7*10}{10*10*11})* \frac{15}{16}+ \frac{4*10*10}{10*4*9}=(60- \frac{462}{10})* \frac{15}{16}+ \frac{10}{9}=$ $( \frac{600-462}{10} )* \frac{15}{16}+ \frac{10}{9}= \frac{138}{10}* \frac{15}{16}+ \frac{10}{9}= \frac{69*5*3}{5*16}+ \frac{10}{9}=\frac{207}{16}+ \frac{10}{9}=$ $\frac{207*9+10*16}{144}= \frac{1863+160}{144}= \frac{2023}{144}=14 \frac{7}{144}$