Ответ:
а) \(6\frac{5}{12}+3\frac{3}{8}=9+\left(\frac{10}{24}+\frac{9}{24}\right)=9\frac{19}{24}\).
б) \(2\frac{11}{20}+4\frac{19}{30}=6+\left(\frac{33}{60}+\frac{38}{60}\right)=6+1\frac{11}{60}=7\frac{11}{60}\).
в) \(3-\frac{18}{19}=2\frac{19}{19}-\frac{18}{19}=2\frac{1}{19}\).
г) \(5\frac{6}{7}-3\frac{1}{14}=5\frac{12}{14}-3\frac{1}{14}=2\frac{11}{14}\).
д) \(2\frac{3}{10}-1\frac{7}{15}=1\frac{13}{10}-1\frac{7}{15}=\frac{39}{30}-\frac{14}{30}=\frac{25}{30}=\frac{5}{6}\).
е) \(10-2\frac{2}{9}=9\frac{9}{9}-2\frac{2}{9}=7\frac{7}{9}\).
Ответ: а) \(9\frac{19}{24}\); б) \(7\frac{11}{60}\); в) \(2\frac{1}{19}\); г) \(2\frac{11}{14}\); д) \(\frac{5}{6}\); е) \(7\frac{7}{9}\).
