Weegy: 7/8 - 2/3 (to solve this , you must make both fractions have a common denominator. [ the lowest common denominator they can have is 24) (7x3)/(8x3) - (2x8)/(3x8) = 21/24 - 16/24 = 5/24 pounds ] User: Jerome walked 2/3 mile in the morning and 11/12 mile in the evening. How many miles did he walk in all? Weegy: 2/3 + 11/12 (again, find the lowest common denominator before addition -> 12) (2*4)/(3*4) + (11*1)/(12*1) = 8/12 + 11/12 = 19/12 miles (More)