Ratios and Ratio Tables - 12/9 & 12/10

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?

Back

Ratios can be written in three ways: as a fraction (a/b), with a colon (a:b), or with the word 'to' (a to b).

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same fraction.

Front

If the ratio of red to yellow paint is 3:5, how much yellow paint is needed for 9 oz of red paint?

Back

15 oz of yellow paint is needed.

Front

What is the ratio of red toy cars to all toy cars if there are 2 black, 3 red, and 5 white toy cars?

Back

The ratio of red toy cars to all toy cars is 3:10.

Front

How do you find a missing number in a ratio?

Back

To find a missing number in a ratio, set up a proportion and solve for the unknown value.

Front

What is the ratio of girls to boys if there are 5 boys and 7 girls?

Back

The ratio of girls to boys is 7:5.

Front

What is a ratio table?

Back

A ratio table is a tool used to organize pairs of numbers that form equivalent ratios, helping to visualize the relationship between quantities.

Front

How can you determine if two ratios are equivalent using a ratio table?

Back

By listing the ratios in a table and checking if the corresponding values maintain the same relationship.

Front

What is the simplest form of the ratio 10:15?

Back

The simplest form of the ratio 10:15 is 2:3.