Вычисли выражения: 6 1/3 - 8

a) $6\frac{1}{3} - 8 = \frac{19}{3} - 8 = \frac{19 - 24}{3} = -\frac{5}{3} = -1\frac{2}{3}$ б) $-2\frac{2}{7} + 4\frac{3}{5} = -\frac{16}{7} + \frac{23}{5} = \frac{-16*5 + 23*7}{35} = \frac{-80 + 161}{35} = \frac{81}{35} = 2\frac{11}{35}$ в) $5\frac{1}{3} - 6\frac{1}{4} = \frac{16}{3} - \frac{25}{4} = \frac{16*4 - 25*3}{12} = \frac{64 - 75}{12} = -\frac{11}{12}$ г) $3\frac{3}{8} : (-\frac{9}{16}) = \frac{27}{8} * (-\frac{16}{9}) = -\frac{27*16}{8*9} = -\frac{3*2}{1*1} = -6$ д) $\frac{5}{12} * (-6) = \frac{5 * (-6)}{12} = -\frac{5}{2} = -2\frac{1}{2}$ ж) $\frac{4}{7} * (-49) = 4 * (-7) = -28$ з) $-16 : (-\frac{4}{9}) = 16 * \frac{9}{4} = 4 * 9 = 36$ и) $-3\frac{1}{2} * (-1\frac{3}{7}) = -\frac{7}{2} * (-\frac{10}{7}) = \frac{7 * 10}{2 * 7} = 5$ **Ответы:** a) $-1\frac{2}{3}$ б) $2\frac{11}{35}$ в) $-\frac{11}{12}$ г) -6 д) $-2\frac{1}{2}$ ж) -28 з) 36 и) 5