9) Between which two consecutive natural numbers is the sum of the following six fractions?
$$
\frac{1}{2}, \frac{1}{3}, \frac{1}{5}, \frac{1}{7}, \frac{1}{11}, \frac{1}{13}
$$
$1<1 / 2+1 / 3+1 / 51 / 7+1 / 11+1 / 13<2$ .