We need to divide the length of the course by the number of volunteers. The course is 131/5 miles long, so our expression reads 131/5 ÷ 11. Dividing by 11 is the same as multiplying by 1/11, so we can rewrite the expression as 131/5 · 1/11. This equals 131/55, or 2&22/55 which is our answer.