Помогите решить примеры -3/8+5/6 дробью -3 целых 5/9-2 целых 7/18(1/30-5/6)-(-3,9-2,2)-5,3

[latex]\frac{3}{8}+ \frac{5}{6}= - \frac{9}{24}+ \frac{20}{24}= \frac{11}{24}[/latex] [latex]3 \frac{5}{9}-2 \frac{7}{18}=- \frac{32}{9}- \frac{43}{18}=- \frac{64}{18}- \frac{43}{18}=- \frac{107}{18}=-5 \frac{17}{18} [/latex] [latex]( \frac{1}{30}-\frac{5}{6})-(-\frac{39}{10}-\frac{22}{10})-\frac{53}{10}=-\frac{24}{30}+ \frac{61}{10}- \frac{53}{10}=-\frac{24}{30}+ \frac{8}{10}=- \frac{24}{30}+ \frac{24}{30}[/latex] = 0