Remark
I take this to mean "What fraction of a mile." Factors and fractions are two different things. If I have made the wrong assumption, please leave a note.
1 mile = 5280 feet
x mile = 480 feet
Discussion
The easiest way to get the fractional amount is to find the Highest Common Factor and cancel it out. What is left will be your answer.
480:2* 2*2*2 *2 * 3 *5
5280:2*2*2*2*2*3*5*11
The bold primes make up the LCM
Answer
[tex]\frac{1}{11}[/tex] is what is left over.
So 480 is 1/11 of 5280 <<< Answer