Question

ОЧЕНЬ СРОЧНО!!!! Я КР ПИШУ

Answer 1

Ответ:

Надеюсь помогла тебе....

Answer 2

$\frac{(2\frac{3}{7}-3,4):(2\frac{3}{7}+3,4) }{(4,2+1\frac{10}{11}):(4,2-1\frac{10}{11})} =$

$=\frac{(2\frac{3}{7}-3,4)*(4,2-1\frac{10}{11})}{(4,2+1\frac{10}{11})*(2\frac{3}{7}+3,4) )} =$

$=\frac{(\frac{17}{7}-\frac{17}{5} )*(\frac{21}{5} -\frac{21}{11})}{(\frac{21}{5} +\frac{21}{11})*(\frac{17}{7}+\frac{17}{5} ) )} =$

$=\frac{17*(\frac{1}{7}-\frac{1}{5} )*21*(\frac{1}{5} -\frac{1}{11})}{17*(\frac{1}{7}+\frac{1}{5} )*21*(\frac{1}{5} +\frac{1}{11})} =$

$=\frac{(\frac{1}{7}-\frac{1}{5} )*(\frac{1}{5} -\frac{1}{11})}{(\frac{1}{7}+\frac{1}{5} )*(\frac{1}{5} +\frac{1}{11})} =$

$=\frac{(\frac{5}{35}-\frac{7}{35} )*(\frac{11}{55} -\frac{5}{55})}{(\frac{5}{35}+\frac{7}{35} )*(\frac{11}{55} +\frac{5}{55})} =$

$=\frac{(-\frac{2}{35} )*\frac{6}{55}}{\frac{12}{35} *\frac{16}{55} } =$

$=-\frac{2}{35}*\frac{6}{55}*\frac{35}{12}*\frac{55}{16}=$

$=\frac{-2*6}{12*16}=-\frac{1}{16}$

Ответ:  $-\frac{1}{16}$