To find the ratio of the number of female runners to the number of male runners, we need to compare the number of women to the number of men.
Given:
- Number of women (female runners) = 6
- Number of men (male runners) = 77
The ratio can be expressed as:
\[ \text{Ratio of female runners to male runners} = \frac{\text{Number of women}}{\text{Number of men}} = \frac{6}{77} \]
Thus, the ratio of female runners to male runners is \( \frac{6}{77} \).
If you would like to simplify the ratio, we notice that 6 and 77 have no common factors other than 1. Therefore, the ratio \( \frac{6}{77} \) is already in its simplest form.
In conclusion, the ratio of female runners to male runners is:
\[ \frac{6}{77} \]