Understanding Ratios

This video tutorial from MooMooMath and Science introduces the concept of ratios, explaining how they compare quantities. It provides examples using dogs and cats, apples and oranges, and a more challenging example with student grades. The video demonstrates how to write ratios in different forms and simplify them. It concludes with a reminder of the importance of kindness.

What is a ratio?

• A comparison of two quantities

• A type of fraction

• A number greater than one

• A mathematical operation

How can you express the ratio of 4 dogs to 6 cats in simplest form?

• 3:2

• 1:2

• 4:6

• 2:3

Which of the following is NOT a way to write a ratio?

• Using a colon

• As a fraction

• Using a semicolon

• In words

If you have 6 apples and 12 oranges, what is the simplified ratio of apples to oranges?

• 3:2

• 1:1

• 2:1

• 1:2

What is the first step in simplifying the ratio of 6 apples to 12 oranges?

• Subtract the smaller number from the larger

• Divide both numbers by 6

• Multiply both numbers by 2

• Add the numbers together

How many sixth graders are there at Smith Middle School?

• 100

• 150

• 125

• 200

What is the simplified ratio of 125 sixth graders to 200 seventh graders?

• 1:2

• 25:40

• 8:5

• 5:8

Which number can be used to simplify the ratio of 125 to 200?

• 5

• 10

• 15

• 25

What is the ratio of seventh graders to sixth graders at Smith Middle School?

• 5:8

• 1:1

• 2:3

• 8:5

What is the importance of simplifying ratios?

• To increase their value

• To change their meaning

• To make them easier to understand

• To make them more complex