Найдите значение выражения:
а) $\frac{3}{4} : \frac{9}{16} - \frac{5}{8} * \frac{4}{15}$;
б) $\frac{20}{27} * \frac{3}{5} + \frac{1}{10} : \frac{3}{100}$;
в) $\frac{7}{16} + \frac{9}{10} * \frac{5}{14} * \frac{7}{12}$;
г) $1 - \frac{9}{16} : 2\frac{1}{4} - \frac{1}{12}$.
$\frac{3}{4} : \frac{9}{16} - \frac{5}{8} * \frac{4}{15} = \frac{3}{4} * \frac{16}{9} - \frac{1}{2} * \frac{1}{3} = \frac{1}{1} * \frac{4}{3} - \frac{1}{6} = \frac{8}{6} - \frac{1}{6} = \frac{7}{6} = 1\frac{1}{6}$
$\frac{20}{27} * \frac{3}{5} + \frac{1}{10} : \frac{3}{100} = \frac{20}{27} * \frac{3}{5} + \frac{1}{10} * \frac{100}{3} = \frac{4}{9} * \frac{1}{1} + \frac{1}{1} * \frac{10}{3} = \frac{4}{9} + \frac{30}{9} = \frac{34}{9} = 3\frac{7}{9}$
$\frac{7}{16} + \frac{9}{10} * \frac{5}{14} * \frac{7}{12} = \frac{7}{16} + \frac{3}{2} * \frac{1}{2} * \frac{1}{4} = \frac{7}{16} + \frac{3}{16} = \frac{10}{16} = \frac{5}{8}$
$1 - \frac{9}{16} : 2\frac{1}{4} - \frac{1}{12} = 1 - \frac{9}{16} : \frac{9}{4} - \frac{1}{12} = 1 - \frac{9}{16} * \frac{4}{9} - \frac{1}{12} = 1 - \frac{1}{4} * \frac{1}{1} - \frac{1}{12} = \frac{12}{12} - \frac{3}{12} - \frac{1}{12} = \frac{8}{12} = \frac{2}{3}$
Пожауйста, оцените решение
