Subtract the numbers using 2's complements, Computer Engineering

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Subtract -27 from 68 using 2's complements.

Ans. By using 2's complement 68-(-27)= 68-(-27)

2's complement representation of 68 = 01000100(64+4)
2's complement representation of - (-27) = 00011011 = + 27
11100101 =-27 in 2's complement
Here add 68 and 27
68 0 1 0 0 0 1 0 0
-(-27) + 0 0 0 1 1 0 1 1

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95 0 1 0 1 1 1 1 1 1

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Means that is equal to +95.

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