1. men to women = 1:2, 1+2 = 3 people total, 3 = denominator, women = 2 = numerator, so 2/3 women
2. plain to milk = 3:2, 5 total, 5 = denominator
a. plain = 3 = numerator, 3/5 plain
b. milk = 2 = numerator, 2/5 milk
3. children to adults = 3:5, total = 8 = denominator
a. children = 3 = numerator, 3/8 children
b. adults = 5 = numerator, 5/8 adults
4. blue to red to black = 5:1:3, total = 9 = denominator
a. red = 1 = numerator, 1/9 red
b. blue = 5 = numerator, 5/9 blue
5. 2/3 female, 3 total monkeys, so 2 female and 1 male, female to male = 2:1
6. 1/2 female, 2 meerkats total, so 1 female and 1 male, female to male = 1:1