A2: Ratios

What is a Ratio?

• Is a comparison of two quantities

• A rate with a denominator of one

• It is when the only factor the numerator and denominator share is a one

• Two decimals that can be multiplied

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which ratio is written incorrectly?

• X : Y
• X and Y
• X/Y
• X to Y

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

There are 4 triangles, 12 squares, and 6 circles.  What is the ratio of triangles to squares? Simplify.

• 12 : 4
• 2 to 6
• 1 : 3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

There are 4 triangles, 12 squares, and 6 circles.  What is the ratio of squares to circles? Simplify.

• 1 : 2
• 1 to 4
• 4 : 3
• 2 : 1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

There are 10 dimes, 8 quarters, and 5 nickels?  What is the ratio of quarters to dimes?

• 10 to 8
• 8 : 10
• 4 : 5
• 5 to 4

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

There are 10 dimes, 8 quarters, and 5 nickels?  What is the ratio of dimes to nickels?

• 10 to 5
• 5 : 10
• 1 : 2
• 2 to 1

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Mr. Wright has 7 boys and 9 girls. What is the ratio of girls to boys?

• 7 to 9
• 9 to 7

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Your brother has a bag of marbles.  He has 8 green marbles, 3 blue marbles, 7 red marbles, and 2 yellow marbles.  What is the ratio of blue marbles to red marbles?

• 3 to 8
• 3 : 7
• 2 to 7
• 2 : 3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Your brother has a bag of marbles.  He has 8 green marbles, 3 blue marbles, 7 red marbles, and 2 yellow marbles. What is the ratio of blue and yellow marbles to red marbles?

• 11 : 7
• 9 to 11
• 5 to 7
• 2 : 15

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

Your brother has a bag of marbles.  He has 8 green marbles, 3 blue marbles, 7 red marbles, and 2 yellow marbles. What is the ratio of blue marbles to green and red marbles?

• 1 to 3
• 1 : 5
• 2 to 3
• 2 : 7

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3