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МатематикаВопрос:
е) (2\(\frac{2}{7}\) + 1\(\frac{1}{7}\)) * 1\(\frac{1}{6}\);
Ответ:
е) (2\(\frac{2}{7}\) + 1\(\frac{1}{7}\)) * 1\(\frac{1}{6}\) = (\(\frac{16}{7}\) + \(\frac{8}{7}\)) * \(\frac{7}{6}\) = (\(\frac{16+8}{7}\)) * \(\frac{7}{6}\) = (\(\frac{24}{7}\)) * \(\frac{7}{6}\) = (\(\frac{24*7}{7*6}\)) = \(\frac{168}{42}\) = 4
Ответ: 4
Похожие
- №1 Решите уравнение a) \(\frac{2}{7}\)x = 2\(\frac{2}{7}\); б) \(\frac{3}{5}\)y = 2\(\frac{9}{10}\) - \(\frac{1}{3}\); ж) m + \(\frac{3}{8}\)m = \(\frac{1}{4}\); з) y - \(\frac{2}{9}\)y = 4\(\frac{2}{8}\);
- №2 а) \(\frac{2}{3}\) : \(\frac{6}{7}\) : \(\frac{4}{7}\);
- б) \(\frac{11}{12}\) : \(\frac{7}{24}\) : \(\frac{21}{22}\);
- в) \(\frac{15}{16}\) : \(\frac{3}{8}\) * \(\frac{2}{4}\);
- г) \(\frac{18}{14}\) * \(\frac{7}{25}\) : \(\frac{18}{25}\);
- д) 2\(\frac{3}{4}\) * (4\(\frac{1}{2}\) : 6\(\frac{3}{4}\));
