19.
Exactly as in the question: 7+5 = 12
The answer to the equation 5 plus 7 is 12. When numbers are being added, the answer is called the sum.
The sum of 12 and -7 is 5.
The sum of 7 plus 71 is 77.
The sum of 1/3 and 3/12 is 7/12.
The sum of 1/3 and 7/12 is 11/12
The sum of 7/15 and 5/12 equals 53/60
SUM means plus 4+7=11
The sum of 11/12 and 2/3 = 1 7/12
The sum of 1/6 and 5/12 is 7/12.
The sum of 7 and 5 is 12
simply 9