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

There are 13 boys and 10 girls in the classroom.  What is the ratio of boys to girls?

• 10 to 13
• 23 to 13
• 13 to 10
• 23 to 10

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Donald's Donuts make both chocolate and glazed donuts. Each Saturday, they make 13 glazed donuts for every 7 chocolate donuts. What is the ratio of chocolate to glazed donuts?

• 13:7
• 7:13
• 7:20
• 20:7

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

In the equivalent ratios below, what did we multiply by to get the ratio on the bottom?

9 : 4

45 : 20

• 6

• 5

• 8

• 3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.3

What number should go in the blank to make the ratios equivalent?

1 : 5

_?_ : 20

• 4

• 5

• 3

Tags

CCSS.6.RP.A.3A

Mrs. Shelly paid $3 for 6 muffins and Mrs. Kloske paid $9 for 18 muffins.  

• yes, equivalent
• no, not equivalent

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

CCSS.6.RP.A.3

For a recipe, Brutus uses 4 cups of sugar for every 5 cups of flour. Which of the following show equivalent ratios for sugar to flour?

• 4/5=8/10 =12/15
• 4/5 = 5/6 = 6/7
• 4/5 = 3/4 = 2/3
• 4/5=8/15=16/45

Tags

CCSS.6.RP.A.3A

Blue and yellow paint are mixed in a ratio of 4 gallons of blue to 5 gallons of yellow to make green paint. How many gallons of blue and yellow will you need to make 27 gallons of green?

• 9:27

• 27:9

• 12:15

• 15:12

There are 90 students on the Bobcat team at LRMS. If the ratio of boys to girls is 2:3, then what is the total number of boys and girls on the team?

• 30 girls to 45 boys

• 30 girls and 60 boys

• 36 girls and 54 boys

• 20 girls and 30 boys

For every 3 cups of rice you need 2 cups of water, if you use 15 cups of ingredients how many cups of rice and water do you use?

• 9 cups of rice to 6 cups of water

• 15 cups of rice to 10 cups of water

• 6 cups of rice to 9 cups of water