take the mileage for each day and make it into a normal fraction, then make them all have the same denominator by multiplying the top and bottom numbers by a number that will make the denominator 12. For day 1, take 2 1/2 and make it 5/2 and multiply it by 6 to get 30/12. then for day two take 1 3/4 and make it into 7/4 and multiply it by 3 to get 21/12. then for day three take 5/6 and multipy it by 2 to get 10/12. Now add them all together; 30/12+21/12+10/12= 61/12. now calculate how many times 12 goes into 61, which is 5 with a remainder of 1/12 so the answer is 5 1/12.
