441 пожалуйста умоляю помогите

$1. - \frac{4}{5}$
$- \frac{3}{3}=-1$
$3)- \frac{7}{7} =-1$
$4) - \frac{1*7}{4*7} - \frac{5*4}{7*4} =- \frac{7}{28} - \frac{20}{28} =- \frac{27}{28}$
5) $- \frac{5}{6} - \frac{1*2}{3*2} =- \frac{5}{6} - \frac{2}{6} = -\frac{5+2}{6} =- \frac{7}{6} =-1 \frac{1}{6}$
6) $- \frac{1}{8}- \frac{3*2}{4*2} =- \frac{1}{8} - \frac{6}{8} =- \frac{1+6}{8} =- \frac{7}{8}$

7) $-4-2- \frac{3}{8}- \frac{1*2}{4*2} =-6- \frac{3}{8}- \frac{2}{8}=-6 \frac{5}{8}$

8) $-6-3- \frac{1*7}{2*7} - \frac{5*2}{7*2} =-9- \frac{7}{14}- \frac{10}{14} =-9 -\frac{7}{14} = -10 \frac{3}{14}$

9) $-12 \frac{5}{9}$