Question

To decorate a cake, you make a shade of purple icing using 2 drops of red food coloring for every 3 drops of blue.

How many drops of blue food coloring would you need if you use 12 drops of red food coloring?

Answer 1

18

Explanation:

12 drops of blue would be 6 sets of colouring, meaning you need to do the number of sets multiplied by the drops, giving us 6x3

And 6x3 is 18

Answer 2

Answer: 18

Explanation:

To get the answer you need to divide 12 by 2 to see what it was multiplied by. (6) Now that you know what the first part of the ratio was multiplied by, you can multiply the other part of it as well.

3 x 6 = 18

You can fact-check it by simplifying the fraction 12/18 which is 2/3.