Three pillowcases can be made with 1

1/2 yards of fabric. How many pillowcases

can be made with 16 1/2 yards of fabric?

Answer : 33

Because ...

3 pillow cases needs 1.5 yards

Then to find 1 pillow case you divide 1.5 by 3

1.5/3 = 0.5

One pillow case needs 0.5 yards.

If you have 16.5 yards of fabric, you divide 16.5 by 0.5 to see how many pillow cases can be made by it

16.5/0.5 = 33

Hope that makes sense