If a recipe calls for 3 cups of cake flour... how much is that of all-purpose flour?

pls help.....as soon as possible!!!!!If a recipe calls for 3 cups of cake flour... how much is that of all-purpose flour?
1 cup + 2 tbsp sifted cake flour = 1 cup sifted all-purpose flourIf a recipe calls for 3 cups of cake flour... how much is that of all-purpose flour?
3 cups is three cups, the difference I believe is the flour. I don't think it's a good idea to use regular flower for cakes.....cake flour has more gluten...
You can actually make cake flour (kind of) from all-purpose flour. All you have to do is sift the flour 3 times instead of just once. This adds air to the flour so the finished product is about 7/8ths of a cup of all-purpose flour to equal one cup of cake flour. This isn't exact...but it works.
It would be the same...';ALL-PURPOSE';=';CAKE';