Вычисли значения выражений a, б, в, г

a) $$(1 \frac{1}{2})^3 - 2 \frac{1}{3} \cdot 1 \frac{1}{4} = (\frac{3}{2})^3 - \frac{7}{3} \cdot \frac{5}{4} = \frac{27}{8} - \frac{35}{12} = \frac{81}{24} - \frac{70}{24} = \frac{11}{24}$$ б) $$\frac{4}{9} \cdot (3 \frac{3}{14} \cdot 2 \frac{4}{5})^2 = \frac{4}{9} \cdot (\frac{45}{14} \cdot \frac{14}{5})^2 = \frac{4}{9} \cdot (9)^2 = \frac{4}{9} \cdot 81 = 4 \cdot 9 = 36$$ в) $$(\frac{2}{3})^3 + \frac{5}{9}) \cdot \frac{9}{11} = (\frac{8}{27} + \frac{5}{9}) \cdot \frac{9}{11} = (\frac{8}{27} + \frac{15}{27}) \cdot \frac{9}{11} = \frac{23}{27} \cdot \frac{9}{11} = \frac{23}{3} \cdot \frac{1}{11} = \frac{23}{33}$$ г) $$(2 \frac{1}{2} - \frac{11}{14}) (1 \frac{4}{9} + 2 \frac{5}{6} - 2) = (\frac{5}{2} - \frac{11}{14}) (\frac{13}{9} + \frac{17}{6} - 2) = (\frac{35}{14} - \frac{11}{14}) (\frac{26}{18} + \frac{51}{18} - \frac{36}{18}) = \frac{24}{14} \cdot \frac{41}{18} = \frac{12}{7} \cdot \frac{41}{9} = \frac{4}{7} \cdot \frac{41}{3} = \frac{164}{21} = 7 \frac{17}{21}$$