Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing 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

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

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CCSS.7.RP.A.2A

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply and then divide to find the unknown value.

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CCSS.7.RP.A.2C

Front

If Connor watched 4 movies in 6 hours, how long would it take him to watch 10 movies?

Back

15 hours.

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CCSS.6.RP.A.3B

Front

If 4 out of every 9 birds are robins, how many robins are there in 63 birds?

Back

28 robins.

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CCSS.6.RP.A.3B

Front

If Rusty walked 5 miles in 65 minutes, how long did it take him to walk 2 miles?

Back

26 minutes.

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CCSS.6.RP.A.3B

Front

What is the ratio of pots to pans if there are 20 pots and 32 pans?

Back

The ratio is 20:32, which simplifies to 5:8.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If there are 48 pans, how many pots are there in the ratio of 20:32?

Back

30 pots.

Front

What is the ratio of jeans to shorts if there are 16 jeans and 12 shorts?

Back

The ratio is 16:12, which simplifies to 4:3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2