Answer:
5/3 Blue and 5/2 Red
Step-by-step explanation:
If you need 1/3 blue for every 1/2 red and you need 2 1/2 of paint total, that would mean you need 5 times more paint because 2 1/2 divided by 1/2 = 5. You then multiply 1/3 and 1/2 to get 5/3 and 5/2.
