Answer
12.75
Work Step by Step
$1100.11_2=1\times2^3+1\times2^2+0\times2^1+0\times2^0+1\times\frac{1}{2}+1\times\frac{1}{4}$
$=8+4+0+0+\frac{1}{2}+\frac{1}{4}=12\frac{3}{4}=12.75$
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