Apunch recipe calls for 1/3 cups of juice, 3/4 cup of grape juice, and 1/2 cups of apple juice. how much fruit juice deeps the recipe call for?

Find the lowest common denominator first, which is 12, so put all the fractions into that denominator
1/3= 4/12
3/4=9/12
1/2=6/12
Add them all together and you get 19/12 which is the same as 1 and 7/12, so the recipe calls for 1 and 7/12 cups of juice

We need more info then that