Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > On addition of +38 and -20 using 2’s co...
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On addition of +38 and -20 using 2’s complement, we get ____________
- a)11110001
- b)100001110
- c)010010
- d)110101011
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
On addition of +38 and -20 using 2’s complement, we get ________...
To add 38 and -20 using 2's complement, follow these steps:
1. Convert both numbers to binary representation.
38 = 00100110
-20 = 11101100 (2's complement of 20)
2. Add the binary numbers, including the sign bit.
00100110
+11101100
__________
00010010
3. The result is 00010010, which is the binary representation of 18.
4. Convert the binary result back to decimal.
00010010 = 18
Therefore, the sum of 38 and -20 using 2's complement is 18.
1. Convert both numbers to binary representation.
38 = 00100110
-20 = 11101100 (2's complement of 20)
2. Add the binary numbers, including the sign bit.
00100110
+11101100
__________
00010010
3. The result is 00010010, which is the binary representation of 18.
4. Convert the binary result back to decimal.
00010010 = 18
Therefore, the sum of 38 and -20 using 2's complement is 18.
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On addition of +38 and -20 using 2’s complement, we get ________...
Steps for Binary Addition Using 2’s complement:
→ The 2’s complement of the addend is found out and added to the first number.
→ The result is the 2’s complement of the sum obtained.
→ The 2’s complement of the addend is found out and added to the first number.
→ The result is the 2’s complement of the sum obtained.
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On addition of +38 and -20 using 2’s complement, we get ____________a)11110001b)100001110c)010010d)110101011Correct answer is option 'C'. Can you explain this answer?
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