Math
Writing ratios.
Definition
Writing ratios means expressing the relationship between two or more quantities as a comparison. Ratios can be written in three forms: using a colon (3:4), as a fraction (3/4), or with the word 'to' (3 to 4).
Examples
Real-world.
- 1 If a class has 12 boys and 18 girls, the ratio of boys to girls is 12:18 or simplified 2:3
- 2 A recipe calls for 2 cups flour to 1 cup sugar, written as 2:1
- 3 In a bag with 5 red and 3 blue marbles, the ratio of red to total is 5:8
Key Fact
Ratios should always be simplified to lowest terms, like fractions