1212Custom color paint is mixed by adding gallon of coloring to 1 gallon of white base. A room requires gallons of custom color paint.
How many gallons of coloring are needed to mix with gallons of white base?

1212If one gallon requires a certain amount of coloring, gallons of custom color paint will require times as much coloring.
So, this is a multiplication problem: multiply the amount of coloring needed for 1 gallon by .

Convert to an improper fraction ()


You could also use a proportion to solve this problem, but it is not as simple as the above method.