Question: 1/2 plus what equals 2?
Answer: The answer to "What plus 2 equals 1/2?" in its simplest form is -1 1/2. You know this answer is correct because 2 plus -1 1/2 equals 1/2. Bonus: You may also be interested to know that the answer in decimal form is -1.5 (rounded to 4 decimal places if necessary).