- \(\left(\frac{11}{19}+\frac{8}{19}\right)+\left(\frac{3}{10}+\frac{7}{10}\right)=1+1=2\).
- \(\left(\frac{14}{50}+\frac{11}{50}\right)+\left(\frac{5}{12}+\frac{1}{12}\right)=\frac{25}{50}+\frac{6}{12}=\frac12+\frac12=1\).
- \(\frac{21}{36}+\frac14-\frac{3}{36}=\frac{18}{36}+\frac14=\frac12+\frac14=\frac34\).
- \(\frac67+\left(\frac{17}{32}-\frac{1}{32}\right)=\frac67+\frac12=\frac{12}{14}+\frac{7}{14}=\frac{19}{14}=1\frac{5}{14}\).
- \(\frac{19}{36}-\frac{1}{36}-\frac{5}{22}=\frac{18}{36}-\frac{5}{22}=\frac12-\frac{5}{22}=\frac{11}{22}-\frac{5}{22}=\frac{3}{11}\).
- \(\frac{13}{36}-\left(\frac19+\frac{1}{36}\right)=\frac{13}{36}-\frac{4}{36}-\frac{1}{36}=\frac{8}{36}=\frac29\).
Ответ: а) 2; б) 1; в) \(\frac34\); г) \(1\frac{5}{14}\); д) \(\frac{3}{11}\); е) \(\frac29\).