Is the answer 1/3? why or why not?

1/3 = grape juice in the bottle
2/3 = fruit mix so that means that a third of this is grape because this is mixed equally with 3 diff juices.

2/3x1/3= 2/9 is grape in the mixed juice

So you gotta add the amount of grape in the mixed juice to the amount of grape juice in the bottle before drink was added

1/3 + 2/9 = 5/9 is grape juice

No, it is 14/27 bc along with the 1/3 grape juice they added equal amounts of orange, apple, and grape, so there is more than 1/3 grape juice. The way I did this problem is I took 2/3 ( the amount that we know is only the mixture) and I multiplied it 3 times by 1/3 in my calculator (for orange, grape, and apple. And I got that