Question

A 271⁄2-mile stretch of road needs repaving. A company bid on the repaving project, saying they could repave 21⁄4 miles of road per week. How many weeks will the company take to completely repave the stretch of road?

Answer 1

turn each number into an improper fraction

27 1/2 = (2*27+1 )/2 = 55/2

2 1/4 = (4*2+1)/4 = 9/4

55/2 divided by 9/4

copy dot flip

55/2 * 4/9

220/18

110/9 12*9 = 108

12 2/9 weeks

or if we round 13 weeks