Алгебра
Английский
Биология
География
Геометрия
История
Русский
Обществознание
Физика
Химия
Информатика
Литература
Математика
Ответ:
Выполним действия по порядку.
1) 3: \(\frac{2}{3}\) = 3 * \(\frac{3}{2}\) = \(\frac{9}{2}\) = 4 \(\frac{1}{2}\)
2) 3 \(\frac{1}{5}\) - 4 \(\frac{1}{2}\) = \(\frac{16}{5}\) - \(\frac{9}{2}\) = \(\frac{32}{10}\) - \(\frac{45}{10}\) = -\(\frac{13}{10}\)
3) 2 * \(-\frac{13}{10}\) = - \(\frac{26}{10}\) = -\(\frac{13}{5}\) = -2 \(\frac{3}{5}\)
4) 3 \(\frac{5}{6}\) - 2 \(\frac{3}{5}\) = \(\frac{23}{6}\) - \(\frac{13}{5}\) = \(\frac{115}{30}\) - \(\frac{78}{30}\) = \(\frac{37}{30}\) = 1\(\frac{7}{30}\)
Ответ: 1 \(\frac{7}{30}\)
1) 3: \(\frac{2}{3}\) = 3 * \(\frac{3}{2}\) = \(\frac{9}{2}\) = 4 \(\frac{1}{2}\)
2) 3 \(\frac{1}{5}\) - 4 \(\frac{1}{2}\) = \(\frac{16}{5}\) - \(\frac{9}{2}\) = \(\frac{32}{10}\) - \(\frac{45}{10}\) = -\(\frac{13}{10}\)
3) 2 * \(-\frac{13}{10}\) = - \(\frac{26}{10}\) = -\(\frac{13}{5}\) = -2 \(\frac{3}{5}\)
4) 3 \(\frac{5}{6}\) - 2 \(\frac{3}{5}\) = \(\frac{23}{6}\) - \(\frac{13}{5}\) = \(\frac{115}{30}\) - \(\frac{78}{30}\) = \(\frac{37}{30}\) = 1\(\frac{7}{30}\)
Ответ: 1 \(\frac{7}{30}\)
