Simplify - 2/5 + 4/3 =

You need to find common denominators. 15. so you have to multiply the 5 from 2/5 by three and the 2 by three to get - 6/15. then multiply the four from 4/3 by 5 to get 20 and the 3 by five to get 15, so 20/15. adding a negative is like substracting so 20/15 - 6/15. 20-6 = 14. so its 14/15