Найдите значение выражения:
а) $\frac{6}{11} : (-\frac{12}{33}) + \frac{7}{10}$;
б) $\frac{1}{2} - \frac{2}{5} * (-\frac{15}{24})$;
в) $1 - \frac{5}{6} * \frac{12}{17}$;
г) $3 + \frac{7}{8} : (-\frac{3}{4})$;
д) $\frac{3}{25} : \frac{6}{35} - 3$;
е) $\frac{14}{15} * \frac{10}{21} - 2$.
$\frac{6}{11} : (-\frac{12}{33}) + \frac{7}{10} = \frac{6}{11} * (-\frac{33}{12}) + \frac{7}{10} = \frac{1}{1} * (-\frac{3}{2}) + \frac{7}{10} = -\frac{15}{10} + \frac{7}{10} = -\frac{8}{10} = -\frac{4}{5}$
$\frac{1}{2} - \frac{2}{5} * (-\frac{15}{24}) = \frac{1}{2} - \frac{1}{1} * (-\frac{3}{12}) = \frac{1}{2} + \frac{3}{12} = \frac{6}{12} + \frac{3}{12} = \frac{9}{12} = \frac{3}{4}$
$1 - \frac{5}{6} * \frac{12}{17} = 1 - \frac{5}{1} * \frac{2}{17} = 1 - \frac{10}{17} = \frac{7}{17}$
$3 + \frac{7}{8} : (-\frac{3}{4}) = 3 + \frac{7}{8} * (-\frac{4}{3}) = 3 + \frac{7}{2} * (-\frac{1}{3}) = 3 - \frac{7}{6} = 2\frac{6}{6} - 1\frac{1}{6} = 1\frac{5}{6}$
$\frac{3}{25} : \frac{6}{35} - 3 = \frac{3}{25} * \frac{35}{6} - 3 = \frac{1}{5} * \frac{7}{2} - 3 = \frac{7}{10} - 2\frac{10}{10} = -2\frac{3}{10}$
$\frac{14}{15} * \frac{10}{21} - 2 = \frac{2}{3} * \frac{2}{3} - 2 = \frac{4}{9} - 1\frac{9}{9} = -1\frac{5}{9}$
Пожауйста, оцените решение