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. It can be expressed in different forms such as fractions, using a colon, or with the word 'to'.

Front

How can a ratio be expressed?

Back

A ratio can be expressed in three ways: 1) As a fraction (e.g., 2/3), 2) Using a colon (e.g., 2:3), 3) Using the word 'to' (e.g., 2 to 3).

Front

If Mary lost 3 out of 5 games, what is the ratio of games lost to games won?

Back

The ratio of games lost to games won is 3:2.

Front

What is the ratio of orange circles to blue circles if there are 3 orange circles and 2 blue circles?

Back

The ratio of orange circles to blue circles is 3:2.

Front

Which of the following is NOT a way to present a ratio?

Back

None. All of these are right ways to write a ratio: as a fraction, using a colon (:), or using the word 'to'.

Front

What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

The ratio of red apples to green apples is 4:3.

Front

What does it mean if a ratio is simplified?

Back

A simplified ratio means that the numbers in the ratio 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

If the ratio is 2:3, then for every 3 girls, there are 2 boys. If there are 15 girls, there are 10 boys.

Front

What is the ratio of 10 to 5?

Back

The ratio of 10 to 5 is 2:1.

Front

How do you find the equivalent ratio of 3:4?

Back

To find an equivalent ratio, multiply both parts of the ratio by the same number. For example, multiplying by 2 gives 6:8.