document.write( "Question 1153257: Do the ratios 2:4/5 and 3/4:2/10 form a proportion?\r
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Algebra.Com's Answer #775462 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "By the definition, a proportion is an equality of two ratios.\r\n" );
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document.write( "So, you calculate one ratio,   =  =  = \r\n" );
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document.write( "and another ratio,   =  =  = .\r\n" );
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document.write( "Then you compare these two ratio (expressed in simplest form), and what you see ?\r\n" );
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