Which fraction is equal to 0.20%?

1/500

First, convert the percent to a decimal by dividing by 100:

0.20% / 100 = 0.002

Now, convert to a fraction:

0.002 = 2/1000

and simplify:

2/1000 = 1/500

1/5

To convert a percent to a decimal you divide by 100. Therefore, the percent has the decimal equivalent

0.0020

this is

2/1000

= .002 = 2/1000 = 1/500

1% = 1/100
this is the same thing since I all I did was add a zero to top and bottom of the fraction:
1.0% = 10/1000
0.2% = 2/1000
(if you don't understand that, just move the decimal point to the right one spot and you'll see)
2/1000 = 1/500 (simplified answer)

The correct answer is 1/500, and bad gal gave a very
clear explanation.

1/500 which equals .002
.002 X 100 = .2%

.20 / 100 = 20 / 10000 = 1 / 500

0.20% = 0.2 / 100 = 0.002 = 2 / 1000 = 2/10 % = 0.2%
therefor the fraction is equal to 0.2% is
= 0.2 / 100 = 0.1 / 50
or
= 2 / 1000 = 1 / 500