1. Percents and Fractions

2. Percent A ratio that compares a number to 100.
It represents part of a whole.
The word “percent” means “per hundred.”
The symbol for percent is %.

3. Whole Number Percents
If the percent is a whole number, drop the percent sign and put the whole number over the denominator Simplify.
Example: 45% =
125% =

4. What PERCENT does this represent?

5. What PERCENT does this represent?

6. What PERCENT does this represent?

7. Whole Number Percents
To write a percent as a fraction, put the percent over 100, then simplify.

8. Write the percent, then change it to a fraction.

9. Write the percent, then change it to a fraction.

10. Write the percent, then change it to a fraction.

11. Percents With Decimals
If the percent is a decimal, drop the percent sign and move the decimal two places to the left. Then change decimal to a fraction and simplify.
Ex % = = 125= 1

12. Marker Boards
Convert the following percents to fractions. 55% = 40% = 150% = 33% = 1.5% = 33.3% = 10% = 0.12% =

13. Converting Fractions to Percents: To write a fraction as a percent, find an equivalent ratio with 100 as a denominator. Example: 4 = 80 = 80%

14. Sometimes you will have to REDUCE a fraction BEFORE you can find an equivalent ratio with a denominator of 100.
Example:
6 = 3 = 75 = 75%

15. Change the fraction to a percent.10 20

16. Change the fraction to a percent.

17. Change the fraction to a percent.

18. Change the fraction to a percent.

19. Change the fraction to a percent
Change the fraction to a percent. If there is no equivalent ratio with a denominator of 100, change the fraction to a decimal, then to a percent.
First, change the fraction to a decimal. Divide the denominator into the numerator. 4÷7=0.571
Move the decimal two places to the right and add the percent sign.
57.1%

20. Change the fraction to a percent.

21. 13 15

22. 27 36