Ratios & Proportions

What is a Ratio?

• A comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Is this proportion equal?
2/7     24/86

• =
• ≠

Tags

CCSS.7.RP.A.2A

Solve:
7/n  =  14/10

• 5
• 7
• 70
• 4

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

Ella has 5 balloons. Taylor has 7 balloons. Write the ratio of Ella's balloons to Taylor's balloons.

• 7:5
• 5:7
• 3:5
• 5:3

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

• 3
• 5.3
• 1.08
• 27

Tags

CCSS.7.RP.A.3

There are 4 trucks for every 5 cars in a parking lot. How many trucks and cars could be in the parking lot?

• 72 trucks and 73 cars

• 64 trucks and 80 cars

• 84 trucks and 100 cars

• 96 trucks and 110 cars

Q. Simplify the ratio of 35 : 14

• 2:5

• 5:2

• 1/2

• not known

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Solve for x

• x = 1/6

• x = 7

• x = 6

• x = 9

Tags

CCSS.7.RP.A.2C

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

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A proportion is a

• ratio statement

• an "if-then" statement

• a statement of 2 ratios that are equal to each other

• a comparison

Tags

CCSS.7.RP.A.2A