Use three methods to express each problem’s ratio. Simplify all fractions.

Question

1. Anna has 12 black rabbits and 4 brown. What is the ratio of black rabbits to brown rabbits?

Answer 1

12/4 = 3/1 = 3:1 = 3 to 1

Answer 2

Anna has 12 black rabbits and 4 brown . What is the ratio of black rabbits to brown rabbits

Answer 3

Method 1:

Ratio of black rabbits to brown rabbits = 12/4

Simplify the fraction:

Ratio of black rabbits to brown rabbits = 3/1

Express as a ratio:

Ratio of black rabbits to brown rabbits = 3:1

Method 2:

Total number of rabbits = 12 + 4 = 16

Ratio of black rabbits to total rabbits = 12/16

Simplify the fraction:

Ratio of black rabbits to total rabbits = 3/4

Ratio of brown rabbits to total rabbits = 4/16

Simplify the fraction:

Ratio of brown rabbits to total rabbits = 1/4

Express as a ratio:

Ratio of black rabbits to brown rabbits = 3:1

Method 3:

Divide both numbers by the greatest common factor (GCF):

GCF(12, 4) = 4

12/4 = 3

4/4 = 1

Ratio of black rabbits to brown rabbits = 3:1