document.write( "Question 1084413: What are rational numbers?
\n" ); document.write( "Is 7/9 a rational number??
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Algebra.Com's Answer #698514 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "Rational numbers are numbers of the form x/y where x and y are integers.
\n" ); document.write( "The set of integers is {..., -3, -2, -1, 0, 1, 2, 3, ...} basically the set of positive and negative whole numbers including 0.\r
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\n" ); document.write( "\n" ); document.write( "Keep in mind that because we CANNOT divide by zero, this means that \"y%3C%3E0\" (y can't equal zero).
\n" ); document.write( "The value of x can be zero because something like x/y = 0/1 = 0 is possible.\r
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\n" ); document.write( "\n" ); document.write( "Side Note: The word \"ratio\" is found in \"rational number\".
\n" ); document.write( "Also, any integer can be expressed as a rational number (eg: 7 = 7/1)\r
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\n" ); document.write( "\n" ); document.write( "Examples of rational numbers: 1/2, 2/3, 5 (since 5 = 5/1)\r
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\n" ); document.write( "\n" ); document.write( "The fraction 7/9 is a rational number because it is in the form x/y where x = 7 and y = 9.
\n" ); document.write( "We don't have to worry about dividing by zero since y is nonzero.
\n" ); document.write( "Both 7 and 9 are whole numbers.
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