Respuesta :

Answer:

3/8

Step-by-step explanation:

vecause there are 8 in total and 3 of them are blue.

hope this helps

3/8! This is because if he were to have 3 blue and 5 red and added them you’d get 8, in which that’s the denominator, your numerator will be the amount of blue marbles making the answer 3/8