Solve the following problem with the help of a math drawing, a table, or a double number line. Explain your reasoning as needed to make your thinking clear. At the beach, you have been able to collect 3/4 of a bucket of seashells. Your little sister is building a sand castle that requires about 2/5 of a bucket of seashells for each gateway. How many gateways is your little sister going to be able to build with the seashells you've collected? Assume that she can build a fraction of a gateway if needed.