Question

Subtract the binary number 11110000 from 1100000 using 1's and 2's complement method ​

Answer 1

Answer:

The numbers of bits in the subtrahend is 5 while that of minuend is 6. We make the number of bits in the subtrahend equal to that of minuend by taking a `0’ in the sixth place of the subtrahend.

Now, 2’s complement of 010110 is (101101 + 1) i.e.101010. Adding this with the minuend.

                          1     1 0 1 1 0      Minuend

                          1     0 1 0 1 0      2’s complement of subtrahend

   Carry over 1       1     0 0 0 0 0      Result of addition

After dropping the carry over we get the result of subtraction to be 100000.