Question 1074745
if you want the distance that each person ran, you would divide the total miles by the number of persons who ran.


your answer would be 15 / 4 = 3 and 3/4.
that tells you the number of miles per person.
that's what you want.


4/15 will tell you the number of persons per mile.
that's not what you want.


here's a reference on unit rate problems that you might find helpful.


<a href = "http://www.virtualnerd.com/pre-algebra/ratios-proportions/rates-word-problem-solution.php" target = "_blank">http://www.virtualnerd.com/pre-algebra/ratios-proportions/rates-word-problem-solution.php</a>