Question 965466
you need 3 parts of yellow for every 5 parts of blue.


you want to make 52 gallons of green paint.


the ratio of yellow to blue is 3:5.


that's a total of 8 parts.


52 / 8 = 6.5


each part requires 6.5 gallons.


3 * 6.5 = 19.5 gallons of yellow.


5 * 6.5 = 32.5 gallons of blue.


19.5 gallons of yellow + 32.5 gallons of blue is equal to 52 gallons of green.


the ratio of yellow to blue is 19.5 / 32.5.


divide both numerator and denominator of this by 6.5 and you get a ratio of 3/5, as you should.