When the sum of the negatives is an integer is when the sum is a whole number
Yes
Yes
Zero can be expressed as the sum of any two opposite mixed number.
No. Each mixed number is made of a whole number and a fraction. When you add them, you have the sum of two whole numbers and two fractions. Since each whole number must be at least ' 1 ', the sum of two whole numbers must be at least ' 2 ', and the two fractions will always make it more than ' 2 '.
The sum of the two mixed numbers 3 1/3 and 2 2/3 is 6.
the sum of a number that is one less than three is two
No. 13/4 plus 61/4 = 8
2 mixed numbers can only be a whole when the 2 numerators add up to the number
An even number less than 57.
nine less than the product of a number and two
If one of or both of the numbers are negative, then yes.