Ответ:

  1. а) \(\frac{1}{5}+\frac{53}{50}=\frac{10}{50}+\frac{53}{50}=\)\(\frac{63}{50}\);
  2. б) \(\frac{1}{5}+\frac{19}{20}=\frac{4}{20}+\frac{19}{20}=\)\(\frac{23}{20}\);
  3. в) \(\frac{1}{2}+\frac{33}{50}=\frac{25}{50}+\frac{33}{50}=\)\(\frac{29}{25}\);
  4. г) \(\frac{1}{5}-\frac{41}{50}=\frac{10}{50}-\frac{41}{50}=\)\(-\frac{31}{50}\);
  5. д) \(\frac{1}{5}-\frac{47}{10}=\frac{2}{10}-\frac{47}{10}=\)\(-\frac{9}{2}\);
  6. е) \(\frac{1}{2}-\frac{9}{10}=\frac{5}{10}-\frac{9}{10}=\)\(-\frac{2}{5}\);
  7. ж) \(\frac{11}{4}-\frac{2}{5}=\)\(\frac{47}{20}\);
  8. з) \(\frac{1}{4}-\frac{3}{25}=\)\(\frac{13}{100}\).