Alaina evaluated 17/18+1/20 and got an answer of 18/38. Which statement is true about her answer? 1. Her answer is not correct because when you add fractions, the sum is always greater than 1.

2. Her answer is correct because all the fractions are less than 1.

3. Her answer is not correct because the sum cannot be less than either addend.

4. Her answer is correct because 17+1=18 and 18+20=38.