convert 1111.11 base 2 to base 10

1111.11 2 = .......... 10

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15.75. The easiest way to do this is to add 0.01 binary, which is 1/2^2=1/4=0.25. When we do this we get 10000 binary, which is 2^4=16. Now we subtract 0.25 to get 15.75.

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