\( -\frac{5}{6} \cdot (-\frac{12}{25}) = \frac{5}{6} \cdot \frac{12}{25} = \frac{5 \cdot 12}{6 \cdot 25} = \frac{60}{150} = \frac{2}{5} \)
Ответ: \(\frac{2}{5}\)