Final answer:
Jana needs an additional 4 1/8 cups of flour on top of her current 3 3/4 cups to make the required pie crusts and cookies.
Step-by-step explanation:
Jana needs a total amount of flour for making pie crusts and cookies. To find out how much more flour Jana needs, we need to add the required amounts for pie crusts and cookies and then subtract the amount of flour Jana currently has.
For pie crusts, Jana requires 5 1/4 cups of flour and for cookies, she needs 2 5/8 cups. Adding these together gives us:
- 5 1/4 cups + 2 5/8 cups = 7 7/8 cups
Jana currently has 3 3/4 cups of flour. To find out how much more she needs, we subtract the amount she has from the total amount needed:
- 7 7/8 cups - 3 3/4 cups = 4 1/8 cups
Therefore, Jana needs an additional 4 1/8 cups of flour to make pie crusts and cookies.