6) $$1\frac{2}{13} \cdot 15 \cdot 1\frac{1}{8} = \frac{15}{13} \cdot 15 \cdot \frac{9}{8} = \frac{15 \cdot 15 \cdot 9}{13 \cdot 8} = \frac{2025}{104} = 19\frac{49}{104}$$
Ответ: $$19\frac{49}{104}$$