To find out how many craft items Chelsea can make, we need to divide the total amount of material she has by the amount of material needed to make one craft item.
First, we need to convert 3 1/3 yards to an improper fraction:
3 1/3 = (3 x 3) + 1 = 10/3 yards
Now we can set up the division:
10/3 yards ÷ 2/3 yards per craft item
To divide fractions, we can multiply by the reciprocal of the second fraction:
10/3 yards x 3/2 yards per craft item = 15/2 or 7.5 craft items
Therefore, Chelsea can make 7.5 craft items with 3 1/3 yards of material. Since she can't make a fraction of a craft item, she could make 7 craft items with some material left over.