In a certain recipe, the ratio of the number of cups of water to the number of cups of flour must be 3:2. How many cups of flour are needed to make three mixtures of such recipe?
Ratio is stated as 2 numbers (usually integers) with "to" between them.
It is usually expressed in the simplest form possible, often with 1 on one side of the ratio, depending on the information being expressed.
The ratio of fingers to bodies for humans is
The ratio of bodies to fingers is
The ratio of fingers to toes is
This would not normally be stated as the ratio
The ratio in the question is therefore 3 cups of water for every 2 cups of flour (making 1 recipe mixture).
To make 3 mixtures of the recipe we would therefore need