Найдите значение выражения:
1) $4\frac{2}{3} * 6 - 1\frac{23}{42} * 3\frac{1}{13} + 2\frac{1}{8} * 1\frac{29}{51}$;
2) $(5\frac{3}{10} - 3\frac{4}{5} * \frac{13}{38}) * \frac{5}{84} + 2\frac{1}{12} * \frac{4}{15}$;
3) $(3\frac{1}{3})^2 - 2\frac{13}{16} * 2\frac{2}{5}$;
4) $(\frac{5}{12} + \frac{13}{20})^2 * 1\frac{13}{32}$.
$4\frac{2}{3} * 6 - 1\frac{23}{42} * 3\frac{1}{13} + 2\frac{1}{8} * 1\frac{29}{51} = \frac{14}{3} * 6 - \frac{65}{42} * \frac{40}{13} + \frac{17}{8} * \frac{80}{51} = 28 - \frac{5}{21} * \frac{20}{1} + \frac{1}{1} * \frac{10}{3} = 28 - 4\frac{16}{21} + 3\frac{1}{3} = 27\frac{21}{21} - 4\frac{16}{21} + 3\frac{7}{21} = 26\frac{4}{7}$
$(5\frac{3}{10} - 3\frac{4}{5} * \frac{13}{38}) * \frac{5}{84} + 2\frac{1}{12} * \frac{4}{15} = (5\frac{3}{10} - \frac{19}{5} * \frac{13}{38}) * \frac{5}{84} + \frac{25}{12} * \frac{4}{15} = (5\frac{3}{10} - \frac{1}{5} * \frac{13}{2}) * \frac{5}{84} + \frac{5}{3} * \frac{1}{3} = (5\frac{3}{10} - 1\frac{3}{10}) * \frac{5}{84} + \frac{5}{9} = 4 * \frac{5}{84} + \frac{5}{9} = \frac{5}{21} + \frac{5}{9} = \frac{15}{63} + \frac{35}{63} = \frac{50}{63}$
$(3\frac{1}{3})^2 - 2\frac{13}{16} * 2\frac{2}{5} = \frac{10}{3} * \frac{10}{3} - \frac{45}{16} * \frac{12}{5} = \frac{100}{9} - \frac{9}{4} * \frac{3}{1} = 11\frac{1}{9} - \frac{27}{4} = 11\frac{4}{36} - 6\frac{27}{36} = 10\frac{40}{36} - 6\frac{27}{36} = 4\frac{13}{36}$
$(\frac{5}{12} + \frac{13}{20})^2 * 1\frac{13}{32} = (\frac{25}{60} + \frac{39}{60})^2 * \frac{45}{32} = \frac{16}{15} * \frac{16}{15} * \frac{45}{32} = \frac{1}{5} * \frac{8}{1} * \frac{1}{1} = \frac{8}{5} = 1\frac{3}{5}$
Пожауйста, оцените решение
