Ratios (and a bunch of their representations)

What is a ratio?

• A multiplicative comparison of numbers.

• A thing about stuff.

• A comparison of two quantities using addition.

• An ordered pair of numbers.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the ratio of red apples to green apples?

• 7 apples to 3 green

• 4 red apples to 7 apples

• 4 red apples to 3 green apples

• 3 green apples to 4 red apples

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the ratio of triangles to squares?

• 2:6

• 5:6

• 3:4

• 4:3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

what is the ratio of turtles to animals?

• 5 : 3

• 5 to 8

• 3 of 5

• 8 : 5

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5
• 5 to 3
• 3 to 5
• 5 to 2

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Kelly has 10 apps on her iPad. 5 are school apps, 2 are music apps, and 3 are games. What is the ratio of school apps to game apps?

• 5/2

• 3/5

• 5/10

• 5/3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

There are 21 boys and 6 girls in Mr. Keys' homeroom. What is the ratio of girls to boys?

• 6:21

• 21:6

• 1:7

• 7:3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Using the image above, a part-to-whole ratio could be represented by:

• 5:16

• 6:10

• 10:16

• 3:5

When dealing with ratios, it is important to remember that...

• You can write ratios however you want

• Order matters

• Ratios are not like fractions

• You can only write ratios one way

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

There are ______ ways to write a ratio.

• 1

• 4

• 2

• 3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2