Convert the unlike fractions. the LCD is 24 1*6/4*6 = 6/24, 3*3/8*3 = 9/24, 5*4/6*4 = 20/24 Compare the three fractions. The largest is 20/24, so Perry walked the farthest.
Subtract Nadine's distance from Perry's distance to find out how much farther Perry walked than Nadine 20/24 - 6/24 = 14/24 mile 14 divided by 2/ 24 divided by 2 = 7/12 mile Perry walked 7/12 mile farther than Nadine.