Ratios and Rates

Find the ratio

100

A recipe calls for 22 cups of flour and 88 cups of water. What is the ratio?

What is 1:4

300

 In a class, there are 12 boys and 18 girls. What is the ratio of boys to girls in its simplest form?

What is 2/3?

500

A school has 12 packs of colored pencils and 8 packs of colored markers what is the ratio?

What is 3:2?

Understand a real life example

100

A bakery sells cupcakes and cookies in a ratio of 4:6. If they sold 12 cookies, how many cupcakes did they sell?

What is 8

300

A bag contains red and blue marbles. The ratio of red marbles to blue marbles is 3∶5. If there are 

15 blue marbles, how many red marbles are there? 

      

What is 9?

500

A library has 25 nonfiction books for every 15 fiction books. If there are 500 nonfiction books how many fiction books are there?

What is 300?

Compare rates

100

   

A car travels 300/5 miles in 5 hours, and another car travels 250/4 miles in 4 hours. Which car is traveling faster?

What is car 2?

300

A store sells 10/3 apples for $3, and another store sells 15/4 apples for $4 Which store has a better price per apple?

What is store 1?

500

A worker earns $100 for 10/3 hours of work, and another worker earns $ 120 for 15/4 hours of work. Which worker has a higher hourly rate?

What is worker 2?