Precentage of the whole

Percentage of the whole

Planning

-Review last lessons

-Learning objectives

- Explanation of  new theory

-Practice

Percentage 

a percentage represents a fraction out of 100.

Percentages can also be represented in decimal or fraction form

Calculate 40% of 78

Percentage of the whole

Example: 

If 17 out of 53 students like soccer, what percentage is that?

Percentage of the whole

Example: 

If 17 out of 53 students like soccer, what percentage is that?

percentage=​whole​​(part)​​⋅100

Percentage of the whole

Example: 

If 17 out of 53 students like soccer, what percentage is that?

percentage=​whole​​(part)​​⋅100

percentage=​53​​17​​⋅100

Percentage of the whole

Example: 

If 17 out of 53 students like soccer, what percentage is that?

percentage=​whole​​(part)​​⋅100

percentage=​53​​17​​⋅100=32,1

%

Challenge: 

If 40 out of 125 students prefer online learning, what percentage is that?

Challenge: 

If 40 out of 125 students prefer online learning, what percentage is that?

percentage=​125​​17​​⋅100=13,6

%

Example: 

If 40 out of 125 students prefer online learning, what percentage is that?

percentage=​125​​17​​⋅100=13,6

%

13,6% of the students prefer online learning

Find 28 out of 82 as a percentage

Find 183 out of 185 as a percentage

what is the difference between percentage of and percentage off?