Teacher2Teacher 
Q&A #2644 
View entire discussion [<< prev] [ next >>]
From: RON <rselby@cinci.rr.com> To: Teacher2Teacher Public Discussion Date: 2003061813:17:34 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%
Post a reply to this message

[Privacy Policy] [Terms of Use]
Math Forum Home 
The Math Library 
Quick Reference 
Math Forum Search