Real World
Percents Ratios and Decimals
Fraction to Percent
What would I do
100
Give three equivalent ratios for 2:3.
4:6, 6:9, 8:12, etc....
100
What is 22:100 as a percent?
22%
100
1/8 = ___ %
40%
100
Name one scenario you can use percents in real life
tipping, sales , shopping, science, baking
200
The area of Ms. Anderson’s office floor measures 120 square feet. She puts down a carpet that covers 40% of the floor.
What is the area of Ms. Anderson’s floor covered by the carpet?
48 square feet
200
There are 14 apples and 26 oranges in a picnic basket. What percentage of the fruit in the basket is apples? Explain what how you got your answer.
53.8%
200
3/12 = ___ %
25%
200
Percent is out of what number?
100
300
Of all the students that Mikey surveyed, 30% said they play baseball. If 21 students play baseball, how many students did Mikey survey in total?
*hint 30%=21 what is the whole 100%??*
70 total
30 % of 70 is 21
300
What percent is 8/25?
32%
300
2/5 = __ %
22.5%
300
What do you do when finding the percent NOT or left over?
(EX: if 25% are red, what percent is not red?)
SUBTRACT
400
Last month, a car dealership sold 80 cars. Of all the cars sold, 15% of them were red. How many cars that were sold were red?
12 cars were red
400
Write 25% as a decimal and ratio in simplest form.
0.125 and 1/8
400
55/125 = __ %
83 1/3%
400
when you are finding percent OF what do you do
(ex: 30% OF 50 is ???)
MULTIPLY
change the percent into a decimal and multiply
500
what percent of flowers are white
60 %
500
55% of ____= 11
*Hint: 55% =11 what is the whole 100%*
20
500
1/4 = ___ %
37.5%
500
when you are finding the missing TOTAL what do you do? (ex: 50% is 15, what is the total 100%?)
DIVIDE
15 divided by 50
amount divided by percent as decimal