document.write( "Question 353891: johnny has a postcard collection
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Algebra.Com's Answer #252977 by Edwin McCravy(20060) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "The fractions you gave will not yield a solution because they\r\n" );
document.write( "add to more than 1 whole set of post cards by themselves. Perhaps\r\n" );
document.write( "you mis-typed one of them. So I substituted some other fractions that \r\n" );
document.write( "will give an answer:\r\n" );
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document.write( "1/2 are from Canada\r\n" );
document.write( "1/5 are from Japan\r\n" );
document.write( "1/7 from France\r\n" );
document.write( "1/10 from Mexico\r\n" );
document.write( "4 are from Italy\r\n" );
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document.write( "Let N = the number of postcards altogether\r\n" );
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document.write( "The LCD of all those denominators is 70 so we multiply every term by \r\n" );
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document.write( "Then you will not have any fractions when you multiply all those\r\n" );
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document.write( "Combine all the like terms on the left:\r\n" );
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document.write( "Subtracting  from both sides:\r\n" );
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document.write( "Dividing both sides by 4\r\n" );
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document.write( "So you have 70 post cards.\r\n" );
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document.write( "Edwin

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