2/5 + 3/6

To add these fractions, you need to find a common denominator. The smallest number that both 5 and 6 divide into is 30.

So, you need to rewrite the fractions with 30 as the denominator:

2/5 = (2 * 6) / (5 * 6) = 12/30 3/6 = (3 * 5) / (6 * 5) = 15/30

Now, the fractions have the same denominator and can be added together:

12/30 + 15/30 = (12 + 15) / 30 = 27/30

However, it is common practice to simplify fractions, if possible. Both the numerator and denominator in 27/30 can be divided by 3:

27/30 = (27/3) / (30/3) = 9/10

So, 2/5 + 3/6 = 9/10.