3. Выразите дроби в более крупных долях. \frac{3}{9}, \frac{5}{40}, \frac{7}{14}, \frac{8}{10}, \frac{22}{30}, \frac{9}{15}.

Представим каждую дробь в более крупных долях, сократив их:

• \(\frac{3}{9} = \frac{3:3}{9:3} = \frac{1}{3}\)
• \(\frac{5}{40} = \frac{5:5}{40:5} = \frac{1}{8}\)
• \(\frac{7}{14} = \frac{7:7}{14:7} = \frac{1}{2}\)
• \(\frac{8}{10} = \frac{8:2}{10:2} = \frac{4}{5}\)
• \(\frac{22}{30} = \frac{22:2}{30:2} = \frac{11}{15}\)
• \(\frac{9}{15} = \frac{9:3}{15:3} = \frac{3}{5}\)

Ответ: \(\frac{1}{3}\), \(\frac{1}{8}\), \(\frac{1}{2}\), \(\frac{4}{5}\), \(\frac{11}{15}\), \(\frac{3}{5}\).