Question

Va rog rezolvați

DAU COROANA!!!!

Answer 1

Răspuns:

- $\frac{26}{10}$ + $\frac{2*5+4}{5}$ * [ ( $-\frac{2*7}{3*5}$ ):(- $\frac{112}{100}$) - (- $\frac{2*10+7}{10}$) :(- $\frac{315}{100}$)]=

$-\frac{13}{5}$ + $\frac{14}{5}$ *[( - $\frac{2*7}{3*5}$) *(- $\frac{100}{112}$) - ( - $\frac{27}{10}$ )* (-$\frac{100}{315}$)]=

-$\frac{13}{5}$ + $\frac{14}{5}$ * ( $\frac{2*7*4*25}{3*5*16*7}$ - $\frac{3*9*100}{10 *9*35}$)= - $\frac{13}{5}$ + $\frac{14}{5}$ *($\frac{5}{6}$ - $\frac{6}{7}$)= $-\frac{13}{5}$ + $\frac{14}{5}$*($\frac{7*5-6*6}{42}$)= $-\frac{13}{5}$ +$\frac{14}{5}$ * (-$\frac{1}{42}$)=

$-\frac{13}{5}$ - $\frac{1}{15}$ = $\frac{-13*3-1}{15}$ = $-\frac{40}{15}$= - $\frac{8}{3}$