Ratios and Equivalent 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

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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

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What is the ratio of red circles to blue stars?

• 3:4
• 7/4
• 11/4
• 4 to 7

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The math team has 12 boys, 10 girls, and one coach. What is the ratio of coaches to students?

• 22 to 1
• 1/10
• 1 to 22
• 1:12

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There are 4 birds and 6 snakes. What is the ratio of birds to total animals?

• 4/10
• 4/6
• 6/4
• 10/4

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The ratio of superheroes to villains was 2:3. Which statement describes this ratio?

• For every 3 heroes there were 2 villains.
• For every 2 heroes there were 3 villains. 
• There were 2 heroes and 3 villains.
• There were 5 people in total.

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Tommy has a bag of LEGOS.  There are 6 yellow, 3 red, and 8 blue LEGOS.  What is the ratio in simplest form of red to yellow LEGOS?

• 1/2
• 6/3
• 2/1
• 3/6

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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

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Mickey is looking for his ties and discovers that he has 20 shirts for every 4 ties. If he has 30 shirts, how many ties does he have?

• 5 ties

• 6 ties

• 60 ties

• 80 ties

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

• yes, equivalent
• no, not equivalent

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