Final answer:
The baker needs 3 more cups of milk for the carrot cake than for the chocolate cake, after converting fluid ounces to cups by dividing by 8 and then subtracting the two amounts.
Step-by-step explanation:
To find out how many more cups of milk the baker needs for the carrot cake recipe than for the chocolate cake recipe, we first need to understand that 1 cup is equivalent to 8 fluid ounces. The baker needs 64 fluid ounces for the carrot cake and 40 fluid ounces for the chocolate cake. We can convert fluid ounces to cups by dividing each amount by 8, which gives us:
- Carrot Cake: 64 fl oz ÷ 8 = 8 cups
- Chocolate Cake: 40 fl oz ÷ 8 = 5 cups
Next, we subtract the smaller amount (chocolate cake) from the larger amount (carrot cake) to find the difference:
8 cups - 5 cups = 3 cups
Therefore, the baker needs 3 more cups of milk for the carrot cake than for the chocolate cake.