Ratios and Equivalent Ratios

Thinking of equivalent ratios, 1 : 4 is equal to:

• 2 : 9

• 4 : 16

• 6 : 26

• 8 : 40

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CCSS.6.RP.A.3A

The picture above represents a ratio from the number of red hearts to the number of blue diamonds. This is equal to:

• 6 : 10

• 10 : 6

• 10 : 16

• 16 : 6

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CCSS.6.RP.A.1

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Using the image above, a part-to-whole ratio could be represente by:

• 5 : 16

• 6 : 10

• 16 : 10

• 3 : 5

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Inside a classroom, for every 12 boys there are 8 girls. That ratio could be represented by:

• 10 : 8

• 20 : 12

• 6 : 4

• 4 : 3

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CCSS.6.RP.A.1

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The 1st term of a ratio is 25 and its second is 20. The simplest form of that ratio is:

• 5 : 4

• 5 : 3

• 6 : 4

• 2 : 1

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CCSS.6.RP.A.3A

For finding a ratio in the simplest form, it will help if you first find the:

• The Lowers Common Factor

• The Lowest Common Multiple

• The Greatest Common Factor

• The Greatest Common Multiple

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CCSS.6.RP.A.3A

The length-to-width ratio from a rectangle is 7 : 4. The rectangle is 24 cm wide. What is its length in cm?

• 36

• 44

• 40

• 42

That drawing shows a part-to-whole ratio. The number of apples to the total fruits is:

• 5 : 12

• 2 : 6

• 4 : 13

• 4 : 12

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CCSS.6.RP.A.1

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A square has a side length of 8 cm. What is the ratio of its perimeter to its side length?

• 4 : 1

• 32 : 8

• 1 : 4

• 8 : 32

If a bag contains 15 red marbles and 10 blue marbles, what is the ratio of blue marbles to total marbles?

• 10 : 25

• 10 : 15

• 15 : 25

• 5 : 3

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CCSS.6.RP.A.1

CCSS.6.RP.A.2