What's a common ratio between 7,15,23

Teams of 4 are competing in a 1/4 mile relay race. each runner must run the same exact distance. what is the distance each teammate runs?

Based on the diagram, match the trigonometric ratios with the corresponding ratios of the sides of the triangle. tiles : cosb sinb tanb sincposs matches: c/b b/a b/c c/a

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.