Выполните вычитание. Вариант 2: 1) 7/20 − 11/50; 2) 17/33 − 5/22; 3) 9/20 − 5/8; 4) 4/7 − 13/28; 5) 5/13 − 14/39; 6) 3/8 − 2/7; 7) 3/4 − 5/12; 8) 15/23 − 27/46.

1. \(\frac{7}{20}-\frac{11}{50}=\frac{35}{100}-\frac{22}{100}=\frac{13}{100}\).
2. \(\frac{17}{33}-\frac{5}{22}=\frac{34}{66}-\frac{15}{66}=\frac{19}{66}\).
3. \(\frac{9}{20}-\frac{5}{8}=\frac{18}{40}-\frac{25}{40}=-\frac{7}{40}\).
4. \(\frac{4}{7}-\frac{13}{28}=\frac{16}{28}-\frac{13}{28}=\frac{3}{28}\).
5. \(\frac{5}{13}-\frac{14}{39}=\frac{15}{39}-\frac{14}{39}=\frac{1}{39}\).
6. \(\frac{3}{8}-\frac{2}{7}=\frac{21}{56}-\frac{16}{56}=\frac{5}{56}\).
7. \(\frac{3}{4}-\frac{5}{12}=\frac{9}{12}-\frac{5}{12}=\frac{4}{12}=\frac{1}{3}\).
8. \(\frac{15}{23}-\frac{27}{46}=\frac{30}{46}-\frac{27}{46}=\frac{3}{46}\).

Ответ: 1) \(\frac{13}{100}\); 2) \(\frac{19}{66}\); 3) \(-\frac{7}{40}\); 4) \(\frac{3}{28}\); 5) \(\frac{1}{39}\); 6) \(\frac{5}{56}\); 7) \(\frac{1}{3}\); 8) \(\frac{3}{46}\).