divide 40.8 gallons of paint among 8 containers
so you need to 40.8 / 8 its the same 408/80408:80 = (400 + 8) / 80 = 400/80 + 8/80 = 40/8 + 8/80 = 40/8 + 1/10 = 5 + 1/10 = 5.1