Answer
a) 00000101 00010010 00100011 = 5.18.35.0
b) 10000000 00100000 = 128.32.0.0
c) 00110000 00011000 = 48.24.0.0
Work Step by Step
To convert to dotted decimal, split the binary number into groups of 8. Then simply convert each group into a decimal number using the base of 2.
$2^{0}=1$, $2^{1}=2$, $2^{2}=4$, $2^{3}=8$, $2^{4}=16$, $2^{5}=32$, $2^{6}=64$, $2^{7}=128$
a) So 00000101 = 5, 00010010 = 18, 00100011 = 35 and fourth place is absent so its 0.
Therefore, 00000101 00010010 00100011 = 5.18.35.0.
b) So 10000000 = 128, 00100000 = 32, and third and fourth place is absent so its 0.
Thus, 10000000 00100000 = 128.32.0.0
c) So 00110000 = 48 and 00011000 = 24 and third and fourth place is absent so its 0.
Thus, 00110000 00011000 = 48.24.0.0