Proportions

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Tags

CCSS.7.RP.A.2A

Front

How do you write a ratio as a fraction?

Back

To write a ratio as a fraction, place the first quantity over the second quantity. For example, the ratio 15 to 6 is written as 15/6.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the simplest form of the ratio 15 girls to 6 boys?

Back

5/2

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does it mean for two ratios to form a proportion?

Back

Two ratios form a proportion if they are equivalent, meaning they represent the same relationship.

Tags

CCSS.7.RP.A.2A

Front

Do the ratios 5:2 and 10:4 form a proportion?

Back

Yes, they form a proportion because 5/2 = 10/4.

Tags

CCSS.7.RP.A.2A

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply and then divide to find the unknown value.

Tags

CCSS.7.RP.A.2C

Front

If 3/4 = x/8, what is the value of x?

Back

x = 6.

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Front

What is the missing side in the proportion 7/x = 14/2?

Back

x = 1.

Tags

CCSS.7.RP.A.2C

Front

How do you find the missing term in a proportion?

Back

Use cross-multiplication to find the missing term.

Tags

CCSS.7.RP.A.2B

Front

What is the ratio of 24 players to 3 teams in simplest form?

Back

8/1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2