г) $$13 \frac{2}{7} - 5 \frac{5}{8} \cdot (1 \frac{2}{9} - \frac{39}{45}) = \frac{93}{7} - \frac{45}{8} \cdot (\frac{11}{9} - \frac{13}{15}) = \frac{93}{7} - \frac{45}{8} \cdot (\frac{11 \cdot 5}{9 \cdot 5} - \frac{13 \cdot 3}{15 \cdot 3}) = \frac{93}{7} - \frac{45}{8} \cdot (\frac{55}{45} - \frac{39}{45}) = \frac{93}{7} - \frac{45}{8} \cdot \frac{16}{45} = \frac{93}{7} - \frac{1}{1} \cdot \frac{2}{1} = \frac{93}{7} - 2 = \frac{93}{7} - \frac{2 \cdot 7}{7} = \frac{93 - 14}{7} = \frac{79}{7} = 11 \frac{2}{7}$$
Ответ: $$11 \frac{2}{7}$$