Ratios/Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you write a ratio of boys to girls if there are 5 boys and 7 girls?

Back

The ratio of boys to girls is 5 to 7.

Front

If Luz earns $400 for 40 hours of work, how much does she earn per hour?

Back

Luz earns $10 per hour.

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 to 3.

Front

How do you find the total number of parts in a ratio?

Back

Add the numbers in the ratio together. For example, in the ratio 5 to 7, the total number of parts is 5 + 7 = 12.

Front

What is the ratio of coaches to players if there are 3 coaches and 10 players?

Back

The ratio of coaches to players is 3 to 10.

Front

How can you use a ratio table to find equivalent ratios?

Back

A ratio table lists pairs of equivalent ratios, allowing you to see how the quantities relate to each other.

Front

If the ratio of red circles to blue stars is 7 to 4, how many blue stars are there if there are 21 red circles?

Back

If there are 21 red circles, there are 12 blue stars (21 red circles / 7 = 3; 3 * 4 = 12 blue stars).

Front

What does it mean if a ratio is expressed as a fraction?

Back

Expressing a ratio as a fraction shows the relationship between the two quantities in a different form, such as 7/4 for the ratio of red circles to blue stars.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both parts of the ratio by their greatest common divisor (GCD). For example, the ratio 8 to 12 simplifies to 2 to 3.