100 percents mean a whole or everything.

To find 100 percent you divide the number by one.

50 percent means half or 50/100.

To find 50 percent you divide the number by two.

10 percent means 10/100 or 1/10.

To find 10 percent you divide the number by ten.

25 percent means 25/100 or 1/4.

To find 25 percent you divide the number by four.

1 percent means 1/100.

To find 1 percent you divide the number by one hundred.

Representing Percents

a) 180% means 180 out of 100 or 180/100 or 1.80/1.8

180%

b) 0.6% means 0.6 out of 100 or 0.6/100 or 0.006

0.6%

c) 12 3/8% means 12 3/8 out of 100 or 12 3/8 /100 or 0.12375

12 3/8%

Converting a fraction to a decimal and a percent

3/40 also means 4 divided by 40. 3/40=0.075/1(decimal).

0.075/1 x 100=7.5% out of 100. But that is a ratio, not a fraction.

Converting a decimal to a percent and a fraction

0.0064 x 100=0.64%

0.64/100 x 100=64/10000 divided by 8=8/1250 divided by 2=4/625

Convert a percent to a decimal and a fraction

0.3/100=0.003

0.3/100 x 10=3/1000

convert from Decimals to Percents to Fractions:

26%/100=0.26x100=26% out of 100. 26/100 divided by 2=13/50 which is the fraction.

7/10=0.7x100=70%. 70/100 divided by 10=7/10.

0.024x100=2.4%. 2.4/100 divided by 2=1.2/50 divided by 2=0.6/25

20% of 60 percent/ number 20% of 60 is 12.

100 / 60

divided by 5 20 / 12 divided by 5

20/100= /60

20x60=1200

1200/100=12

0.1% of 40 percent/number

100 / 40

divided by 1000 0.1 / 0.04 divided by 1000

0.1/100= /40

40x0.1=4

4/100=0.04

250% of 400 percents/number

100 / 400

multiply by 2.5 250 / 1000 multiply by 2.5

250/100= /400

400x250=100000

100000/100=1000

50% of or 25% off of an already reduced price of 25%:

50% off: 25% off: 25% off of an already reduced price 25%:

50/100= /200 25/100= /200 25/100= /150

200x50=10000 200x25=5000 150x25=3750

10000/100=100 5000/100=50 3750/100=37.50

200-100=$100-answer 200-50=$150 150-37.50=$112.5-answer

50% of is better than 25% off of an already reduced price of 25% because 50% of goes straight to the half of the price. But 25% off of an already reduced price of 25% is more expensive because it cuts the half price in half which makes the price a different 100%.

http://www.youtube.com/watch?v=ZBOBfZT562c

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