Вычислите:
а) $2\frac{1}{6} * 2\frac{1}{4}$;
б) $2\frac{1}{7} * 1\frac{2}{5}$;
в) $3\frac{5}{9} * 4\frac{7}{8}$;
г) $1\frac{1}{12} * \frac{8}{11}$.
$2\frac{1}{6} * 2\frac{1}{4} = \frac{13}{6} * \frac{9}{4} = \frac{13}{2} * \frac{3}{4} = \frac{39}{8} = 4\frac{7}{8}$
$2\frac{1}{7} * 1\frac{2}{5} = \frac{15}{7} * \frac{7}{5} = \frac{3}{1} * \frac{1}{1} = 3$
$3\frac{5}{9} * 4\frac{7}{8} = \frac{32}{9} * \frac{39}{8} = \frac{4}{3} * \frac{13}{1} = \frac{52}{3} = 17\frac{1}{3}$
$1\frac{1}{12} * \frac{8}{11} = \frac{13}{12} * \frac{8}{11} = \frac{13}{3} * \frac{2}{11} = \frac{26}{33}$
Пожауйста, оцените решение
