Explanation:
First we need to figure out the sum of 3/8 and 2/5. The least common multiple is 40.
So, 15 / 40 + 16 / 40 = 31 / 40.
Bonus: To find out oregano, you subtract 40 / 40, or 1 from 31/40, 40 / 40 - 31 / 40 is 9 / 40.
Hope this helps, and Best of Luck to you!