1/5•7/3

To multiply the fractions \( \frac{1}{5} \) and \( \frac{7}{3} \), you multiply the numerators together and the denominators together:

\[ \frac{1 \times 7}{5 \times 3} = \frac{7}{15} \]

So, \( \frac{1}{5} \cdot \frac{7}{3} = \frac{7}{15} \).