Answer
12.6875
Work Step by Step
$1100.1011_2$
$=1\times2^3+1\times2^2+0\times2^1+0\times2^0+1\times\frac{1}{2}+0\times\frac{1}{4}+1\times\frac{1}{8}+1\times\frac{1}{16}$
$=8+4+0+0+\frac{1}{2}+0+\frac{1}{8}+\frac{1}{16}$
$=8+4+0+0+\frac{8}{16}+0+\frac{2}{16}+\frac{1}{16}$
$=12\frac{11}{16}=12.6875$
