If there are 4 ounces of vanilla in a 12 ounces milkshake , it means that every 3 ounces of milkshake , 1 ounce of those 3 ounces is vanilla 4 ÷ 12 = 1/3
1/3 is the proportion of vanilla and milkshake.
4 ÷ 12 can also be written as 2/6 or 4/12
Awnser : 1/3 , 2/6 or 4/12 , 8/24 etc ...
ps. dont drink this milkshake , it is just chocolate and vanilla ( theres not even milk in it )