Add 2 1/3 and 1 2/5.

• A. 3 7/15
• B. 4 1/15
• C. 3 11/15
• D. 3 1/3

Answer: (C)

When you add mixed numbers, you combine the whole parts and the fractional parts. You can handle the fractions by using a common denominator, or convert everything to improper fractions.

Here, the whole parts are 2 and 1, which add to 3. For the fractions, 1/3 and 2/5 need a common denominator; with 15 as the common denominator, 1/3 becomes 5/15 and 2/5 becomes 6/15. Add them to get 11/15. Put it together: 3 and 11/15, or 3 11/15.

If you convert to improper fractions, you’d have 7/3 and 7/5; with a denominator of 15, that’s 35/15 + 21/15 = 56/15 = 3 11/15.