1/5×3/4

To multiply the fractions \(\frac{1}{5}\) and \(\frac{3}{4}\), you multiply the numerators together and the denominators together:

\[ \frac{1 \times 3}{5 \times 4} = \frac{3}{20} \]

So, \(\frac{1}{5} \times \frac{3}{4} = \frac{3}{20}\).