Решение:
1. \(\frac{1,3}{5} \cdot \frac{3}{5,2} = \frac{13}{50} \cdot \frac{3}{52/10} = \frac{13}{50} \cdot \frac{30}{52} = \frac{13}{50} \cdot \frac{30}{4*13} = \frac{1}{50} \cdot \frac{30}{4} = \frac{30}{200} = \frac{3}{20}\)
Ответ: \(\frac{3}{20}\)