[tex] \frac{1}{5} / 3 \\ \frac{1}{5} / \frac{3}{1} \\ \frac{1}{5} * \frac{1}{3} \\ \frac{1*1}{5*3} \\ \frac{1}{15} [/tex]
In order to divide a fraction by a whole number, you must make the whole number a fraction, by putting the number over one. In order to divide something by a fraction, you flip the divisor (3 or 3/1) to get the reciprocal (1/3) and multiply the two fractions together. Hope this helps!
