12. Jason ran \( \frac{5}{7} \) of the distance around the school track, Sara ran \( \frac{4}{5} \) of Jason's distance. What fraction of the total distance around the track did Sara run?

To find out the fraction of the total distance around the track that Sara ran, we need to determine Sara's distance based on Jason's. Jason ran \( \frac{5}{7} \) of the track, and Sara ran \( \frac{4}{5} \) of that distance. First, we calculate Sara's distance: \[ \text{Sara's distance} = \frac{4}{5} \times \frac{5}{7} = \frac{4 \times 5}{5 \times 7} = \frac{4}{7}. \] So, Sara ran \( \frac{4}{7} \) of the total distance around the track. In summary, Sara ran \( \frac{4}{7} \) of the track, which means she covered more than half the distance! Now that's some speedy running. 🏃‍♀️💨