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2SWAG4U
The answer would be 1.4, because 7 cups into 5 cakes equals 1.4.

Hope this helps ya
Lucy1891
So I would set up a porportion: 7 cups flour over 5 cakes. 7/5.

Then the other half would be: x cups over 1 cake. x/1

Set the two equal to each other 7/5=x/1

Cross multiply: 5x=7

Divide to solve for x: x=7/5
x=1.4 cups.

So just used about 1.4 cups of flours per cake.