half No. It is one and a half.
11. The double of one half is what you started with.
1/2 + 1/2 .5 + .5.5 * 21/2 * 2
If you double 1 1/2 cups, then you get 3 cups.
One and a half = 11/2 = 3/2Half of that = 1/2 * 3/2 = 3/4