Question

-11/36-[7/18+(11/2-13/9)]

Answer 1

$- \frac{11}{36} - ( \frac{7}{18} + ( \frac{11}{2} - \frac{13}{9} )) =$

$= - \frac{11}{36} - ( \frac{7}{18} + \frac{99 - 26}{18} ) =$

$= - \frac{11}{36} - ( \frac{7}{18} + \frac{73}{18} ) =$

$= - \frac{11}{36} - \frac{80}{18} =$

$= - ( \frac{11}{36} + \frac{80}{18} ) =$

$= - \frac{11 + 160}{36} =$

$= - \frac{171}{36}$