Jim's stride measures $2\frac{1}{2}$ feet, and jeffrey's stride measures $2\frac{2}{3}$ feet. there are 5280 feet in a mile. if jim and jeffrey each walk one mile, what is the ratio of the number of strides jim takes to the number of strides jeffrey takes? express your answer as a common fraction.

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)