Решить пример (-14.09)*2 1/6-6.31*(-1 1/2)-2 1/6*6.31+(-1 1/2)*(-14.09)

Решите задачу:

$( - 14.09) \times 2 \frac{1}{6} - 6.31 \times ( - 1 \frac{1}{2} ) - 2 \frac{1}{6} \times 6.31 + ( - 1 \frac{1}{2} ) \times ( - 14.09)$

$- \frac{1409}{100} \times \frac{13}{6} - \frac{631}{100} \times ( - \frac{3}{2} ) - \frac{13}{6} \times \frac{631}{100} + ( - \frac{3}{2} ) \times ( - \frac{1409}{100} )$

$- \frac{18317}{600} + \frac{1893}{200} \times \frac{8203}{600} + \frac{4227}{200}$

$- \frac{68}{5} = - 13 \frac{3}{5} = - 13.6$