Выполни деление: a) 5 3/9 : 5

a) $5 \frac{3}{9} : 5 = \frac{48}{9} : 5 = \frac{48}{9} \cdot \frac{1}{5} = \frac{48}{45} = \frac{16}{15} = 1 \frac{1}{15}$ б) $3 \frac{3}{5} : 3 \frac{8}{9} = \frac{18}{5} : \frac{35}{9} = \frac{18}{5} \cdot \frac{9}{35} = \frac{162}{175}$ в) $6 \frac{3}{7} : 6 \frac{9}{7} = \frac{45}{7} : \frac{51}{7} = \frac{45}{7} \cdot \frac{7}{51} = \frac{45}{51} = \frac{15}{17}$ г) $24 \frac{24}{25} : (-12) = -(\frac{624}{25} : 12) = -(\frac{624}{25} \cdot \frac{1}{12}) = -\frac{52}{25} = -2 \frac{2}{25}$ д) $3 \frac{5}{9} : 2 \frac{2}{3} = \frac{32}{9} : \frac{8}{3} = \frac{32}{9} \cdot \frac{3}{8} = \frac{4}{3} = 1 \frac{1}{3}$ ж) $-3 : 2 \frac{1}{3} : 9 = -3 : \frac{7}{3} : 9 = -3 \cdot \frac{3}{7} : 9 = -\frac{9}{7} \cdot \frac{1}{9} = -\frac{1}{7}$