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.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you write a part-to-part ratio?

Back

A part-to-part ratio compares two parts of a whole. For example, if there are 14 soccer players and 16 football players, the part-to-part ratio is 14:16.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a part-to-whole ratio?

Back

A part-to-whole ratio compares a part of a quantity to the whole quantity. For example, if there are 14 soccer players out of 30 students, the part-to-whole ratio is 14:30.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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, 14:16 can be simplified to 7:8.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit rate?

Back

The unit rate is a ratio that compares a quantity to one unit of another quantity. For example, if Dan earns $15 for 2 hours, his unit rate is $7.50 per hour.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a multiplicative relationship?

Back

A multiplicative relationship is when one quantity is multiplied by a factor to get another quantity. For example, if 2 boxes contain 20 pencils, then 8 boxes contain 80 pencils, showing a multiplicative relationship.

Front

What is an additive relationship?

Back

An additive relationship is when quantities are added together. For example, if you have 10 apples and you add 5 more, you have 15 apples.

Tags

CCSS.1.OA.A.1

Front

How do you use a ratio table?

Back

A ratio table is a tool that helps you find equivalent ratios. You can fill in the table by multiplying or dividing the quantities.

Front

If 2 hours of work earns $15, how much is earned for 1 hour?

Back

$7.50 is earned for 1 hour.

Tags

CCSS.6.RP.A.3B

Front

What is the ratio of soccer players to football players if there are 14 soccer players and 16 football players?

Back

The ratio is 14:16.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2