Ratios

Ratios

by Kevvin Hankins

Ratios and Ratio Tables

I understand that ratios are a comparison of two numbers and they can be written in 3 different ways: as a fraction, with a colon, and with the word "to".

Multiple Choice

Which sentence accurately represents the following ratio:

• The ratio of moons to suns is 4 to 8

• There are 4 moons for every 8 suns

• There are 4 moons for every 2 suns

• The ratio of suns to moons is 2:1

Multiple Select

What statements are true about the ratio 7 to 8?

• It could mean 7 out of 8 students completed a homework assignment.

• It could mean there are 7 girls for every 8 boys in a classroom.

• The ratio 9 to 10 would be equal to 7 to 8.

• The ratio could be rewritten as 14 to 16.

Multiple Choice

Patrick has 2 black, 3 red, and 5 white toy cars. What is the ratio of red toy cars to all the toy cars?

• 3:5

• 1:3

• 3:11

• 3:10

Multiple Choice

In the fruit bowl there are 4 apples, 2 bananas, and 5 pears. What is the ratio of pears to ALL fruit?

• 5:4

• 5:11

• 2:5

• 6:5

Multiple Choice

Ten soccer players were going to a soccer tournament with their three coaches. What is the ratio of coaches to players?

• 10 : 3

• 10:13

• 3 : 10

• 3:13

Equivalent Ratios

We can use multiplication or division to write equivalent fractions.

Multiple Select

Select ALL the ratios that are equivalent to 16 : 6

• 3 to 8

• 32 : 12

• 4 to 2

• 8 to 3

Multiple Choice

For a recipe, Brutus uses 4 cups of sugar for every 5 cups of flour. Which of the following show equivalent ratios for sugar to flour?

• 4/5=8/10 =12/15

• 4/5 = 5/6 = 6/7

• 4/5 = 3/4 = 2/3

• 4/5=8/15=16/45

Multiple Choice

Simplify the ratio of

35 : 14

• 5 : 2

• 2 : 5

• 3 : 1

• 35: 14

Ratio Tables

Ratio tables can be used to organize ratios and find missing values for ratios.

Multiple Choice

What is the missing number in this table?

• 3

• 6

• 12

• 9

Multiple Choice

Luz earns $400 for 40 hours of work. Use a ratio table to determine how much she earns for 6 hours of work.

• $60.00

• $20.00

• $40.00

• $10.00

Multiple Choice

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets

Multiple Choice

What is the missing number in the ratio table?

• 21

• 24

• 27

• 25

Multiple Choice

Kaleigh is purchasing apps on her iphone. Based on the table How much would it cost of 7 apps?

• $3

• $21

• $24

• $50

Multiple Choice

What is B?

• 3

• 9

• 2

• 6

Fill in the Blanks