Explanation:
8 1/4 = 32/4 + 1/4 = 33/4
1 1/2 = 2/2 + 1/2 = 3/2
how many trips ? we need to see how often 3/2 fits into 33/4. that is a division
33/4 / 3/2
remember, dividing by a fraction is the same as multiplying with the inserted fraction.
so,
33/4 / 3/2 = 33/4 × 2/3 = 33×2 / 4×3 = 33 / 2×3 = 11/2 =
5.5 or 5 1/2
so, it will take 5 1/2 truck loads of 6 trips (with the last one being only half full).