Question

we cannot find 1's complement for 28 reason

Answer 1

Hey mate.
Here is your answer-

Let's try to find one's complement of 28.

First,we have to convert it in binary.

2|28
2|14 ----0 ☝
2|7 -----0. ☝
2|3------1. ☝
2|1 ------1. ☝
2|0 -----1. ☝

=> 11100

One's complement of 11100 = 00011. (negative)

Hence,we find the one's complement of 28.

Hope it helps!!!!!