Ratios and Proportions Review Day 1

Ratios and Proportions Review Day 1

Ms. Wang's 6th Grade Math

​What is ratio?

​* Ratio is a comparison of two quantities

​* When writing a ratio, order is never important as long as you use the correct numbers.

Multiple Choice

What is a Ratio?

• Is a comparison of two quantities

• To multiply two fractions

• Strictly a fraction

• Two decimals that can be multiplied

Multiple Choice

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

• read, write, demonstration
• to solve
• using to, using a colon, and as a fraction
• very important

Multiple Choice

Which statement below is true when it comes to writing a ratio?

• Order is never important as long as you use the correct numbers.

• When writing a ratio order always matters.

• Order is important only if you are writing a ratio using boys and girls.

• When writing a ratio the bigger number always comes first.

Example:

Multiple Choice

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

• 5 to 7
• 7 to 5
• 5 to 12
• 7 to 12

Multiple Choice

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5
• 5 to 3
• 3 to 5
• 5 to 2

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

Which represents the relationship of oranges to fruit?

• 2:6
• 2:4
• 4:6
• 4:2

Multiple Choice

Tell if the ratio is part-to-part or part-to-whole.
4 apples to 3 oranges

• Part-to-Part
• Part-to-Whole

Multiple Choice

Tell if the ratio is part-to-part or part-to-whole.
In a a mini bag of M&Ms, there are 16 M&Ms and 5 of them are red.

• Part-to-Part
• Part-to-Whole

Multiple Choice

How many different ways can you write a ratio

• 1
• 2
• 3
• 4

Multiple Choice

A ratio can be written as all the ways below EXCEPT which one?

• 3=4

• 3:4

• $$\frac{3}{4}$$

• 3 to 4

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

The pet shop has 2 dogs, 4 cats, and 5 hamsters. What is the ratio of dogs to all pets?

• 2:4
• 2:5
• 2:11
• 11:2

How to simplify ratios

​To simplify a ratio, divide all numbers by their GCF.

Multiple Choice

Tommy has a bag of LEGOS. There are 6 yellow, 3 red, and 8 blue LEGOS. What is the ratio in simplest form of red to yellow LEGOS?

• $$\frac{1}{2}$$

• $$\frac{6}{3}$$

• $$\frac{2}{1}$$

• $$\frac{3}{6}$$

Multiple Choice

Simplify the ratio $$\frac{14}{50}$$  

• $$\frac{7}{25}$$

• $$\frac{14}{50}$$

• $$\frac{21}{100}$$