What is two fifths plus five twelfths?

To add two fifths (2/5) and five twelfths (5/12), first find a common denominator, which is 60. Convert the fractions: 2/5 becomes 24/60 and 5/12 becomes 25/60. Adding these gives 24/60 + 25/60 = 49/60. Therefore, two fifths plus five twelfths equals 49/60.