Only if one of them is negative, eg:
31/2 + (-11/2) = 2
Otherwise both are positive and no:
A mixed number has a whole number greater than or equal to one plus a fractional bit, ie a mixed number is of the form 1a/b (1 and a fraction), 2a/b (2 and a fraction), 3a/b (3 and a fraction), etc
Adding two such numbers together must be at least:
(1 and a fraction) + (1 and a fraction) = 2 + (the sum of the fractions)
which must be greater than 2 and cannot equal 2 (as both the fraction are positive and their sum is greater than zero).
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Yes
yes 1.5 +.5 = 2 * * * * * No. 0.5 is NOT a mixed number. But 3.5 + (-1.5) = 2
When the sum of the negatives is an integer is when the sum is a whole number
Only if you include negatives. The sum of 3 and 1/2 + -1 and 1/2 equals 2.
Zero can be expressed as the sum of any two opposite mixed number.