Ralph sold brownies for $0.12 a piece in order to earn money to buy baseball cards. If the cards cost $0.36 per pack, and if Ralph had no money left over after buying them, what is the least number of brownies he must have sold
The least number of brownies he would have to sell is 3. To get this answer you have to divide 0.36 by 0.12. This basically means figuring out how many of 0.12 can fit into 0.36. This leads you to the answer of 3.