Subtraction of 0011.1001 - 0001.1110 using 2's complement method
Ans. Firstly 1's complement of 0001.1110 is 1110.0001 and 2's complement is 1110.0010.
If a last carry is produced discard the carry and the answer is provided by the remaining bits that is positive that is,
(0001.1011)_{2}= (+1.68625)_{10}