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Q&A #2644

Teachers' Lounge Discussion: Partitioning Fractions

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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%

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