Teacher2Teacher 
Q&A #2644 
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From: RON <rselby@cinci.rr.com> To: Teacher2Teacher Public Discussion Date: 2003061814:17:34 Subject: Re: Re: fraction to percent To change a fraction to a percent , e.g. 18/45: 1) Set up a proportion 18/45 = x/100 (percent means "out of 100") Solve the proportion ( by cross multiplying ) 45x=1800 (Then divide both sides by 45) or x=40 Therefore 18/45 = 40% OR 2) Change the fraction to a decimal. Divide the numerator by the denominator. 18/45 = .4 Then move the decimal two places to the right. Therefore 18/45 = 40%
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