Question 707509
total blocks: 18 + 22 + 15 + 5 + 15 + 5 = 80


red: 18/80 = 9/40
blue: 22/80 = 11/40
orange: 15/80 = 3/16
purple: 5/80 = 1/16
green: 15/80 = 3/16
yellow: 5/80 = 1/16