Painting a bathroom
We know that David uses 2/3 of 3 gallons.
This is
In order to find how many gallons are 2/3 out of 3 gallons, we just multiply 3 gallons by the numerator and divide by the denominator: 3 x 2 = 6, 6/3 = 2
Then, David uses 2 gallons of paint in the bathroom.
Answer: 2 gallons