Ratios as Fractions and Decimals

In a certain apartment building, the ratio of tenants to cars is 3:5. If there are 30 tenants, how many cars are there?

• 35

• 60

• 18

• 50

3 ways to write a ratio is.....

• read, write, demonstration

• to solve

• using to, using a colon, and as a fraction

• very important

Simplify

• 2:10

• 1:10

• 1:2

• 2:1

There are 4 birds and 6 snakes. What is the ratio of birds to snakes in the simplest form?

• 6/4

• 2/3

• 1/3

• 10/16

Jane is comparing the number of boys in the class to the number of  girls.  There are 15 boys and 10 girls.  What is the correct way to express this in ratio form?

• 5/10 ; 5:10; 5 to 10

• 10/15;10 to 15; or 10 to 15

• 15 boys/10 girls; 15 boys:10 girls; 15 boys to 10 girls

• Talia
• Marisol
• Nina
• Joanne

Which ratio is equivalent to 3:4

• 12:14

• 6:8

• 4:3

• 20:15

Write 7/8 as a decimal.

• 0.765

• 0.825

• 0.875

• 0.925

What does the ratio 8 : 23 compare?

• cats to turtles

• dogs to all animals

• dogs to cats

• turtles to all animals

A comparison of two quantities (amounts)

• Ratio

• Proportion

• Rate

• Multiplicative Relationship