Over the weekend, Mrs. Kingston sold slices of cake at a bake sale fundraiser for her son's soccer team. Each cake was cut into eight slices. On the first day of the sale, she sold 2 1/4 chocolate cakes, and 2 3/8 caramel cakes. On the second day, she sold 3/4 of a chocolate cake and 3 1/2 caramel cakes. Which statement tells the total number of cakes she sold and explains how the total can be calculated?