Writing and Solving Proportions

What is a proportion?

• When two ratios can be simplified
• When two ratios are equivalent and show the same value
• When two ratios have the exact same numbers
• When two ratios can be multiplied by 2

Tags

CCSS.7.RP.A.3

CCSS.7.RP.A.2

Are the fractions equivalent?

• Yes
• No

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CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Tags

CCSS.6.RP.A.3A

Do the ratios form a proportion?

• Yes, they form a proportion.
• No, they do not form a proportion.

Tags

CCSS.6.RP.A.3A

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=45

Tags

CCSS.7.RP.A.2B

• 2
• 12
• 108
• 18

Tags

CCSS.7.RP.A.1

• 14
• 7
• 2
• 112

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CCSS.7.RP.A.2B

• 48
• 120
• 2.5
• 15

Tags

CCSS.7.RP.A.2B

Solve for x

• x = 19.6

• x = 5/98

• x = 101/5

Tags

CCSS.7.RP.A.3

Solve for x 

• x = 6
• x = 25
• x = 28
• x = 17

Tags

CCSS.7.RP.A.3