45% = 0.45
= 45/100 = 9/20
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The decimal fraction 0.452 is equivalent to 45 and a fifth percent.
4500% = 45 (since percent is a fraction of 100, divide 4500 by 100 to get decimal form.)
33.75. To calculate percent off, convert the percent into a decimal. So 25 percent = .25 as a decimal. Then multiply this by 45. .25*45 = 11.25. Then subtract this from 45. 45 - 11.25 = 33.75. You can also think of 25% as 1/4, and divide 45 by 4.
45 percent in a fraction is 9/20.
Since percent means "of 100", you know that 45/100 is equal to 45 percent. Expressed as a decimal, 45/100 is equal to 0.45.