Контрольные задания
Вопрос:

Вычислите: 1) \(\frac{6}{8}-\frac{1}{8}\); 2) \(\frac{22}{5}+\frac{22}{5}\); 3) \(\frac{55}{7}-\frac{53}{7}\); 4) \(\frac{3}{10}+\frac{4}{10}\); 5) \(\frac{7}{12}-\frac{5}{12}\).

Фото задания: Вычислите: 1) \(\frac{6}{8}-\frac{1}{8}\); 2) \(\frac{22}{5}+\frac{22}{5}\); 3) \(\frac{55}{7}-\frac{53}{7}\); 4)…Фото задания

Ответ:

  1. \(\frac{6}{8}-\frac{1}{8}=\frac{6-1}{8}=\frac{5}{8}\).
  2. \(\frac{22}{5}+\frac{22}{5}=\frac{22+22}{5}=\frac{44}{5}=8\frac{4}{5}\).
  3. \(\frac{55}{7}-\frac{53}{7}=\frac{55-53}{7}=\frac{2}{7}\).
  4. \(\frac{3}{10}+\frac{4}{10}=\frac{3+4}{10}=\frac{7}{10}\).
  5. \(\frac{7}{12}-\frac{5}{12}=\frac{7-5}{12}=\frac{2}{12}=\frac{1}{6}\).

Ответ: \(\frac{5}{8};\ 8\frac{4}{5};\ \frac{2}{7};\ \frac{7}{10};\ \frac{1}{6}\).