Question

Ana walked 2 1/2 miles on the Freedom Trail. She walked 5/8 mile from Boston Common to the Paul Revere House. Then, she walked 3/8 mile from the Paul Revere House to Copp Hill Burying Ground. How many more miles did Ana walk to complete the trail to the USS Constitution?

Answer 1

1 1/2

Explanation:

if you add Boston Commons, Paul Revere House, and Copp's Hill burying Grpond you get a number that you subtract from the total

Answer=1 1/2

Answer 2

I have no idea what the total should be. What you have so far is

d = 2 1/2 miles + 5/8 miles + 3/8 miles
d = 5/2 + 5/8 + 3/8
The common denominator is 8.
To change 5/2 to something over 8, you have to multiply top and bottom of 5/2 by 4
5*4/2*4 = 20 / 8

d = 20/8 + 5/8 + 3/8
d = 28 / 8
d = 3 4/8
d = 3 1/2 miles