Yesterday, Jack drove 33 and one half miles. He used 1 and one fourth gallons of gasoline. What is the unit rate for miles per gallon?

change the mixed numbers to improper fractions

33 1/2 = (2*33 + 1) / 2 = 67/2

1 1/4 = (4*1 + 1) / 4 = 5/4

67/2 divided by 5/4

copy dot flip

67/2 * 4/5

268/10

divide by 2

134/5

5*26 = 130 134-130 = 4

26 4/5