2 and 1
11/3 and 12/3
2 1/2
1 1/2 + 1 1/2 = 3
1 1/2 + 1 1/2
Only if you include negatives. The sum of 3 and 1/2 + -1 and 1/2 equals 2.
11/3 and 12/3
2 1/2
1 1/2 + 1 1/2 = 3
1 1/2 + 1 1/2
1 1/2 + 1 1/2
1 and 1/2 + 1 and 1/2
Only if you include negatives. The sum of 3 and 1/2 + -1 and 1/2 equals 2.
Only if you include negatives. The sum of 3 and 1/2 + -1 and 1/2 equals 2.
Any two mixed numbers such that their whole number is 1 and the sum of the fractional parts is 1, eg: 1 1/4 + 1 3/4 1 1/3 + 1 2/3 1 3/7 + 1 4/7
Only if you include negatives. The sum of 3 and 1/2 + -1 and 1/2 equals 2.
Three mixed numbers that add up to ten are 3 1/2, 3 1/4, and 3 1/4. When you sum these, you get 3 1/2 + 3 1/4 + 3 1/4 = 10. Other combinations are also possible, such as 4 1/3, 3 1/3, and 2 1/3. The key is that their total must equal ten.
There are not three prime numbers that have the sum of 3. The smallest prime number is 2. If all three prime numbers were 2, the sum would 2 + 2 + 2 = 6, so that is the smallest number that is the sum of three prime numbers.