Ratio Vocabulary
A comparison of two quantities using division is called a ______.
Ratio
Complete the equivalent ratio: 2:3 = 4:___
6
There are 3 red balloons and 5 blue balloons. What is the ratio of red balloons to blue balloons?
3:5
For every 2 dogs at a shelter, there are 3 cats. If there are 4 dogs, how many cats are there?
6 cats
True or False: 2:5 and 6:15 are equivalent ratios.
True
Name the three common ways to write the ratio “3 to 5.”
3 to 5, 3:5, 3/5
Complete the equivalent ratio: 5:8 = ___:16
10
A basket has 4 apples and 6 oranges. What is the ratio of oranges to all the fruit?
6:10 or 3:5
A recipe uses 2 cups of sugar for every 5 cups of flour. If you use 10 cups of flour, how many cups of sugar are needed?
4 cups
Which one does NOT belong: 3:4, 6:8, 9:12, 12:20?
12:20
In a class there are 8 boys and 12 girls. What is the ratio of boys to girls?
8:12 or 2:3
Which ratio is equivalent to 4:6: 8:12, 8:10, or 12:16?
8:12
A bag contains 8 blue marbles, 4 green marbles, and 2 yellow marbles. What is the ratio of green marbles to blue marbles?
4:8 or 1:2
The ratio of red shirts to blue shirts is 3:4. If there are 12 blue shirts, how many red shirts are there?
9 red shirts
Complete the pattern: 4:7, 8:14, 12:21, ___:28
16:28
What do we call two ratios that represent the same relationship?
Equivalent ratios
Find the missing number: 7:9 = 21:___
27
A classroom has 12 girls and 8 boys. What is the ratio of boys to the total number of students?
8:20 or 2:5
A store sells 5 notebooks for every 2 packs of pencils. If it sells 20 notebooks, how many packs of pencils would be sold at the same ratio?
8 packs
A ratio is equivalent to 5:7. The first number is 30. What is the second number?
42
True or False: The ratios 3:4 and 4:3 describe the same relationship. Explain.
False. Order matters in a ratio.
Find two different ratios equivalent to 6:15.
Possible answers: 2:5, 12:30, 18:45, etc.
A box contains 6 red, 9 blue, and 3 green markers. What is the ratio of blue markers to markers that are not blue?
9:9 or 1:1
A fruit punch recipe uses orange juice and pineapple juice in a ratio of 4:3. If you use 20 cups of orange juice, how many cups of pineapple juice are needed?
15 cups
The ratio of chocolate cookies to sugar cookies is 3:5. There are 32 cookies total. How many are chocolate and how many are sugar?
12 chocolate and 20 sugar