Recipe calls for 2 parts grape juice and 6 parts water. Make 80 ounces of grape drink. How many ounces of grape juice and ounces of water

First, see how many parts in total (6+2=8) then divide 80 by 8 which is ten. you then know that each part must be 10 ounces so 2 parts becomes 20 ounces of grape juice and 6 parts becomes 60 ounces of water