Question

In a fruit cocktail, for every 25 ml of orange juice you need 30 ml of apple juice and 45 ml of coconut milk. What proportion of the cocktail is apple juice?
Give your answer as a fraction in its simplest form.

Answer 1

First, simplify the ratio. By dividing everything by 5, you get that for every 5 ml of orange juice, you need 6 ml of apple juice and 9 ml of coconut milk. Then, you take the value for the apple juice as the numerator and the sum of all the values in the denominator of the proportion. That would be 6/(5+6+9), or 6/20, or simplified further, 3/10.