2/5+5/8

To add these two fractions, you need to find a common denominator. The least common multiple (LCM) of 5 and 8 is 40.

Multiplying the numerator and denominator of the first fraction (2/5) by 8, we get:

2/5 * 8/8 = 16/40.

Multiplying the numerator and denominator of the second fraction (5/8) by 5, we get:

5/8 * 5/5 = 25/40.

Now, we can add the two fractions:

16/40 + 25/40 = 41/40.

The result is 41/40.