Introduction to Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another.

Front

How can a ratio be written?

Back

A ratio can be written using the word 'to', using a colon (:), or as a fraction.

Front

What is the ratio of bananas to apples if there are 9 bananas and 4 apples?

Back

9:4

Front

If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?

Back

2:3

Front

What is the ratio of triangles to squares if there are 4 triangles and 3 squares?

Back

4:3

Front

In a fruit basket with 15 pieces of fruit, 6 are apples. What is the ratio of oranges to total pieces of fruit if there are 9 oranges?

Back

9:15

Front

What does it mean if a ratio is simplified?

Back

A simplified ratio means that the quantities have been reduced to their smallest whole number form.

Front

If the ratio of boys to girls in a class is 2:3, how many boys are there if there are 15 girls?

Back

10 boys (because 2/3 = x/15, x = 10).

Front

What is the ratio of 5 red marbles to 10 blue marbles?

Back

1:2 (simplified from 5:10).

Front

If there are 12 cats and 8 dogs, what is the ratio of cats to dogs?

Back

3:2 (simplified from 12:8).