Question

8-bits 2's complement form of decimal number (-45) is ​

Answer 1

Answer:

8-bits 2's complement form of decimal number (-45) is 0010 1101

Explanation:

For finding 2's complement of 45

First we have to find 1's complement and for 1's complement we need to find binary form of 45

Now,

$45 \div 2 = 22 \: (remainder \: 1) \\ 22 \div 2 = 11 \: (remainder \: 0) \\ 11 \div 2 = 5 \: (remainder \: 1) \\ 5 \div 2 = 2 \: (remainder \: 1) \\ 2 \div 2 = 1 \: (remainder \: 0)$

Binary of 45 = 101101

1's complement of 45 = reverse of Binary of 45 = 010010

1's complement of 45 =

$1s \: complement \: + 1$

$010010 + 1 = 1101 0011$

So,

8-bits 2's complement form of decimal number (-45) is 0010 1101