Answer:
3/4 lbs.
Step-by-step explanation:
In order to find how much more the heavier boxes weigh than the lighter boxes, we have to subtract the lighter box weight from the largest box weight.
Lighter box weight = 4 1/2
Heavier box weight = 5 1/4
Now we can find their difference:
The heavier box weight - lighter box weight = 5 1/4 - 4 1/2 = 21/4 - 9/2 = 21/4 - 18/4 = 3/4.
The heavier boxes weigh 3/4 lbs. more than the lighter boxes.
