Writing Ratios

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What is a ratio?

Back

A ratio is a comparison of two quantities that shows how many times one value contains or is contained within the other.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you write a ratio?

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Ratios can be written in three ways: using a colon (e.g., 2:3), using the word 'to' (e.g., 2 to 3), or as a fraction (e.g., 2/3).

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CCSS.6.RP.A.1

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What is the ratio of pink stripes to green stripes if there are 16 pink and 20 green stripes?

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The ratio of pink stripes to green stripes is 16 to 20.

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How can you simplify the ratio 16:20?

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You can simplify the ratio 16:20 to 4:5 by dividing both numbers by their greatest common divisor, which is 4.

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What does a ratio of 4:1 mean in terms of quantity?

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A ratio of 4:1 means that for every 4 of one quantity, there is 1 of another quantity.

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CCSS.6.RP.A.1

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If there are 72 students who prefer math and 18 who prefer science, what is the ratio of math to science?

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The ratio of students who prefer math to those who prefer science is 72:18, which simplifies to 4:1.

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CCSS.6.RP.A.1

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What does it mean if the ratio of superheroes to villains is 2:3?

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It means that for every 2 superheroes, there are 3 villains.

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Write the part-to-part ratio of students who prefer football (53) to those who prefer baseball (42).

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The part-to-part ratio of students who prefer football to those who prefer baseball is 53:42.

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CCSS.6.RP.A.1

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Is the statement 'The ratio of legs to heads is 4:1' correct if there are 4 legs for every 1 head?

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Yes, it is correct. It means for every 1 head, there are 4 legs.

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CCSS.6.RP.A.1

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What is the first step to find a ratio?

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The first step to find a ratio is to identify the two quantities you want to compare.

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CCSS.6.RP.A.1

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