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

What does part-to-part ratio mean?

Back

A part-to-part ratio compares one part of a whole to another part of the same whole.

Front

What does part-to-whole ratio mean?

Back

A part-to-whole ratio compares one part of a whole to the entire whole.

Front

How do you write a ratio?

Back

Ratios can be written using a colon (:) or as a fraction.

Front

If there are 16 M&Ms and 5 are red, what is the part-to-whole ratio of red M&Ms?

Back

5:16

Front

What is the ratio of total shapes to circles if there are 7 shapes and 3 are circles?

Back

7:3

Front

What is the ratio of dogs to total animals if there are 5 dogs and 14 total animals?

Back

5:14

Front

What is the first step in writing ratios?

Back

Identify in words what is being compared.

Front

If Patrick has 2 black, 3 red, and 5 white toy cars, what is the ratio of red toy cars to all toy cars?

Back

3:10

Front

How do you simplify a ratio?

Back

Divide both parts of the ratio by their greatest common factor.