Divide by 80.
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To change a fraction into a decimal, divide the numerator (top number) by the denominator (bottom number).
Divide the top number (numerator) by the bottom number (denominator) of the fraction and the number you come up with is your decimal.
You divide 23/100
To write 2.81 percent as a fraction, you need to divide it by 100. This gives you 0.0281. Since the number is in the hundredths place, the fraction would be 28.1/100.
Let's use the fraction 1/8 as an example. You can say it as one over eight or one eighths. To convert it to a decimal, you divide the numerator (the number on top) by the denominator (the number on the bottom). So, if you divide 1 by 8, you get 0.125. That's the decimal number for 1/8.Another example:To write the fraction 1/4 as a decimal, you would divide the 1 by the 4, which equals .25 To write it in words it is one fourth, or twenty five hundredths.