Kathy has 3/4 of a yard of fabric. She needs 3/10 of a yard for each doll dress she makes. How many doll dresses can she make

In order to calculate correctly, it is important that we are able to understand well the given values. We have

3/4 yard fabric = total amount of available fabric

3/10 yard = amount needed to make one doll

Therefore,

number of doll dresses = 3/4 / 3/10 = 5/2 doll dresses