Question

Rafael and Ivanna walk around a track. Rafael walks each lap in 7 minutes. Ivanna walks each lap in 5 minutes. The two of them begin at the starting line at the same time. They walk until they meet again at the starting line.

Answer 1

The way you find this is lcm. The lcm of 7 and 5 is 35. If you divide 35 by each number, you get 5 and 7. This is the amount of times they each had to walk to stop at the same time