ratio review

Multiple Choice

What is a Ratio?

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

Multiple Choice

Kelly has 10 apps on her iPad. 5 are school apps, 2 are music apps, and 3 are games. What is the ratio of school apps to game apps?

• 5 to 2
• 3 to 5
• 5 to 10
• 5 to 3

1. Find the ratio of the shaded region to the unshaded region.

​ 7:3

​2. Find the ratio of the shaded region to the total region.

​ 7:10

​3. FInd the ration of the shaded region to the unshaded region to the total region.

​ 7:3:10

​Answer:

​What is ratio?

​

​ Ratio is an ordered comparison of quantities of the same kind. It can be expressed as a fraction.

A ratio a:b is in simpliest form or lowest terms if its terms are whole numbers with a GCF of 1.

​To reduce a:b in simplest form, we divide each term by the GCF of a and b or we can use the continuous division method.

Find the ratio of 420 to 600 in the simplest form.

​The GCF of 420 and 600 is 60,

​

​

​

​The required ratio is 7:10

​420

Multiple Choice

Express this ratio in simplest form!!

There are 16 male teachers out of 40. 

• 16:40
• 2:5
• 2:9
• 90:75

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

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

A soup that serves 16 people calls for 4 cups of chicken broth. How many cups of chicken broth would you need to make an identical recipe that serves 32 people?

*Use a ratio table to find the answer*

• 6 cups

• 4 cups

• 8 cups

• 1 cup

Multiple Choice

Express the ratio as a fraction in the simplest form. 
6 dimes to 18 dimes

• ½
• ⅓
• ⅖
• ¼

Multiple Choice

Express the ratio as a fraction in the simplest form. 
14 footballs to 35 footballs 

• ½
• ⅓
• ⅖
• ¼

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

Which ratio is equivalent to 5 to 4

• 25 to 20
• 10 to 12
• 4 to 5
• 15 to 8

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

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 Choice

Suppose a class has 14 redheads, 8 brunettes, and 6 blondes. What is the ratio of redheads to blondes?  Write your answer in SIMPLEST FORM. 

• 14:6
• 7:3
• 14:8
• 7:4

Multiple Choice

What  number is missing?

• 7
• 3
• 10
• 5

Multiple Choice

There are 13 boys and 10 girls in the classroom.  What is the ratio of boys to girls?

• 10 to 13
• 23 to 13
• 13 to 10
• 23 to 10

Multiple Choice

What number is missing?

• 12
• 3
• 11
• 13

Multiple Choice

If you have 3 pennies, 4 nickels, and 5 dimes, which represents the ratio of nickels to total coins?

• 4:5
• 3:12
• 4:12
• 5:12

Multiple Choice

Based on the graph, how many songs would there be in 12 hours?

• 80 songs

• 15 songs

• 90 songs

• 65 songs

Multiple Choice

A cookie recipe calls for 2 eggs and 3 cups of flour. How many cups of flour is needed with 8 eggs?

• 9 cups of flour

• 5 cups of flour

• 12 cups of flour

• 6 cups of flour

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

Simplify to lowest terms

• 6
• 2/8
• 1/6
•  2/12

Multiple Choice

2.  Write 3 to 9 as a ratio.

• 3:9
• 3^9
• 3 - 9
• 3 + 9

Multiple Choice

If there are 5 boys and 7 girls, write the ratio of girls to students

• 5 is to 7
• 7 is to 5
• 5 is to 12
• 7 is to 12

Multiple Choice

What is the definition of a "ratio"? 

• comparing two liquads
• comparison between two amounts 
• comparing two Corbin OGuin's 
• comparison between a unit