Ответ:
Вычитаем вторую дробь из первой.
- а) \(\frac{5}{6}-\frac{2}{3}=\frac{5}{6}-\frac{4}{6}=\frac{1}{6}\).
- б) \(\frac{5}{6}-\frac{7}{12}=\frac{10}{12}-\frac{7}{12}=\frac{1}{4}\).
- в) \(\frac{11}{15}-\frac{2}{3}=\frac{11}{15}-\frac{10}{15}=\frac{1}{15}\).
- г) \(\frac{40}{60}-\frac{9}{15}=\frac{40}{60}-\frac{36}{60}=\frac{1}{15}\).
- д) \(\frac{2}{3}-\frac{1}{8}=\frac{16}{24}-\frac{3}{24}=\frac{13}{24}\).
- е) \(\frac{17}{42}-\frac{6}{21}=\frac{17}{42}-\frac{12}{42}=\frac{5}{42}\).
- ж) \(\frac{2}{8}-\frac{4}{24}=\frac{6}{24}-\frac{4}{24}=\frac{1}{12}\).
- з) \(\frac{23}{45}-\frac{4}{15}=\frac{23}{45}-\frac{12}{45}=\frac{11}{45}\).
