-17 2/9-8 2/9+4 5/18+2 7/18-1 5/9+11 1/18

[tex]-17 \frac{2}{9} -8 \frac{2}{9} +4 \frac{5}{18} +2 \frac{7}{18} -1 \frac{5}{9} +11 \frac{1}{18} = \\\ =-17- \frac{4}{18} -8- \frac{4}{18} +4+ \frac{5}{18} +2+ \frac{7}{18} -1- \frac{10}{18} +11 +\frac{1}{18} = \\\ =(-17-8+4+2-1+11)+ \frac{-4-4+5+7-10+1}{18} =-9- \frac{5}{18} =-9\frac{5}{18}[/tex]