b) We need to perform the following operations, where numbers are represented in 2's complement: (24 pts) 61128 225 31 -257256 126 +263 -511-167 137 886 For each case: Determine the minimum number of bits required to represent both summands. You might need to sign-extend one of the summands, since for proper summation, both summands must have the same number of bits. Perform the binary addition in 2's complement arithmetic. The result must have the same number of bits as the summands Determine whether there is overflow by: Using cn,Cm-1 (carries) Performing the operation in the decimal system and checking whether the result is within the allowed range for n bits, where n is the minimum number of bits for the summands. ii. If we want to avoid overflow, what is the minimum number of bits required to represent both the summands and the result