\[\frac{6}{5} - \frac{3}{4} = \frac{6 \cdot 4}{5 \cdot 4} - \frac{3 \cdot 5}{4 \cdot 5} = \frac{24}{20} - \frac{15}{20} = \frac{24 - 15}{20} = \frac{9}{20}\]
\[\frac{9}{20} \cdot \frac{2}{3} = \frac{9 \cdot 2}{20 \cdot 3} = \frac{18}{60}\]
\[\frac{18}{60} = \frac{18 \div 6}{60 \div 6} = \frac{3}{10}\]
Ответ: \(\frac{3}{10}\)