Решим пример по действиям:
1. $$\left(\frac{5}{6}\right)^2 = \frac{5^2}{6^2} = \frac{25}{36}$$
2. $$6^3 = 6 \cdot 6 \cdot 6 = 216$$
3. $$\frac{25}{36} \cdot 216 = \frac{25 \cdot 216}{36} = \frac{25 \cdot 6}{1} = 150$$
4. $$\left(\frac{4}{5}\right)^3 = \frac{4^3}{5^3} = \frac{64}{125}$$
5. $$3\frac{29}{32} = \frac{3 \cdot 32 + 29}{32} = \frac{96 + 29}{32} = \frac{125}{32}$$
6. $$\frac{64}{125} \cdot \frac{125}{32} = \frac{64 \cdot 125}{125 \cdot 32} = \frac{2 \cdot 1}{1 \cdot 1} = 2$$
7. $$150 - 2 = 148$$
Ответ: 148