Percents Greater than 100%
What whole number is equal to 100%?
What whole number is equal to 200%? 300%? 600%?
What fraction and decimal are equal to 250%? How can we show this using the rules from yesterday?
Recall: To change a fraction or a decimal to a percent, multiply by 100.
Ex 1: Write each fraction as a percent
a.
12
5
b.
3
c.
17
4
7
10
Ex 2: Write each decimal as a percent
a.
12.5
b.
4.65
c.
7.123
Percents less than 1%
What percent is equal to 1 whole?
What percent is equal to 1/2?
What percent is equal to 1/4?
What percent is equal to 1/10?
What percent is equal to 1/25?
What percent is equal to 1/100?
What percent is equal to 1/200?
When the denominator of a fraction is greater than 100, the percent equivalent is less than 1%.
Ex 3: Write each fraction as a percent
a.
7
1,000
b.
3
400
Recall: To change a percent to a fraction or a decimal, divide by 100.
Ex 5: Write each percent as a decimal and as a fraction in simplest form.
a.
190%
b.
525%
c.
0.5%
d.
0.075%
Homework: 302/ 2­30 x2