3. Выполните вычитание: 1) \(3\frac{1}{16}-\frac{1}{8}\); 2) \(7\frac{9}{20}-5\frac{17}{30}\); 3) \(4\frac{2}{7}-1\frac{4}{9}\); 4) \(8\frac{5}{36}-1\frac{43}{108}\); 5) \(9\frac{7}{9}-4\frac{5}{6}\); 6) \(6\frac{7}{32}-2\frac{11}{48}\).

1. \(3\frac{1}{16}-\frac{1}{8}=3\frac{1}{16}-\frac{2}{16}=2\frac{15}{16}\).

2. Общий знаменатель: \(60\). \(\frac{9}{20}=\frac{27}{60}\), \(\frac{17}{30}=\frac{34}{60}\).

   \(7\frac{9}{20}-5\frac{17}{30}=1+\frac{60+27-34}{60}=1\frac{53}{60}\).

3. Общий знаменатель: \(63\). \(\frac{2}{7}=\frac{18}{63}\), \(\frac{4}{9}=\frac{28}{63}\).

   \(4\frac{2}{7}-1\frac{4}{9}=2+\frac{63+18-28}{63}=2\frac{53}{63}\).

4. \(\frac{5}{36}=\frac{15}{108}\). Тогда \(8\frac{5}{36}-1\frac{43}{108}=7+\frac{15-43}{108}=6\frac{80}{108}=6\frac{20}{27}\).

5. Общий знаменатель: \(18\). \(\frac{7}{9}=\frac{14}{18}\), \(\frac{5}{6}=\frac{15}{18}\).

   \(9\frac{7}{9}-4\frac{5}{6}=5+\frac{14-15}{18}=4\frac{17}{18}\).

6. Общий знаменатель: \(96\). \(\frac{7}{32}=\frac{21}{96}\), \(\frac{11}{48}=\frac{22}{96}\).

   \(6\frac{7}{32}-2\frac{11}{48}=4+\frac{21-22}{96}=3\frac{95}{96}\).

Ответ: 1) \(2\frac{15}{16}\); 2) \(1\frac{53}{60}\); 3) \(2\frac{53}{63}\); 4) \(6\frac{20}{27}\); 5) \(4\frac{17}{18}\); 6) \(3\frac{95}{96}\).