Вычисли значения выражений в задании 6 а)

a) $6\frac{1}{3} - 8 = \frac{19}{3} - 8 = \frac{19}{3} - \frac{24}{3} = -\frac{5}{3} = -1\frac{2}{3}$ б) $-2\frac{2}{7} + 4\frac{3}{5} = -\frac{16}{7} + \frac{23}{5} = -\frac{16*5}{7*5} + \frac{23*7}{5*7} = -\frac{80}{35} + \frac{161}{35} = \frac{81}{35} = 2\frac{11}{35}$ в) $5\frac{1}{3} - 6\frac{1}{4} = \frac{16}{3} - \frac{25}{4} = \frac{16*4}{3*4} - \frac{25*3}{4*3} = \frac{64}{12} - \frac{75}{12} = -\frac{11}{12}$ г) $\frac{3}{8} : (-\frac{9}{16}) = \frac{3}{8} * (-\frac{16}{9}) = -\frac{3*16}{8*9} = -\frac{2}{3}$ д) $\frac{5}{12} * (-6) = -\frac{5 * 6}{12} = -\frac{5}{2} = -2\frac{1}{2}$ е) $-3\frac{2}{9} * 3 = -\frac{29}{9} * 3 = -\frac{29 * 3}{9} = -\frac{29}{3} = -9\frac{2}{3}$ ж) $\frac{4}{7} * (-49) = -\frac{4 * 49}{7} = -4 * 7 = -28$ з) $-16 : (-\frac{4}{9}) = -16 * (-\frac{9}{4}) = \frac{16 * 9}{4} = 4 * 9 = 36$ и) $-3\frac{1}{2} * (-1\frac{3}{7}) = -\frac{7}{2} * (-\frac{10}{7}) = \frac{7 * 10}{2 * 7} = \frac{10}{2} = 5$ **Ответ:** a) $-1\frac{2}{3}$ б) $2\frac{11}{35}$ в) $-\frac{11}{12}$ г) $-\frac{2}{3}$ д) $-2\frac{1}{2}$ е) $-9\frac{2}{3}$ ж) $-28$ з) $36$ и) $5$