Question

The other day, we made green water by mixing 5 ml of blue water with 15 ml of yellow water.

We want to make a very SMALL batch of the SAME shade of green water.

We need to know how much yellow water to mix with only 1 ml of blue water.

Answer 1

You can do this by solving an equation with fractions. For example, 5ml/1ml = 15ml/?
5 divided by 1 equals 5, so if we take that same rule and apply it to the other fraction; 15 divided by 5, we get 3. So 5ml/1ml = 15ml/3ml. ***You need to mix 3 ml of yellow water with 1 ml of blue water.***