document.write( "Question 4955: What is the fraction? So, that it is equivalent to the fraction with the indicated denominator.\r
\n" ); document.write( "\n" ); document.write( "5/7 = ?/21 \r
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Algebra.Com's Answer #2456 by Hungryfrog(2)\"\" \"About 
You can put this solution on YOUR website!
You can solve these types of questions by cross-multiplying.\r
\n" ); document.write( "\n" ); document.write( "So --> 5 x 21 = 7 x n (I substituted n for ?)\r
\n" ); document.write( "\n" ); document.write( "That comes out to 105 = 7 n
\n" ); document.write( "Then you can divide each side by 7 to solve for n:
\n" ); document.write( "15 = n\r
\n" ); document.write( "\n" ); document.write( "So, you can rewrite it as 5/7 = 15/21
\n" ); document.write( "Those two fractions are equivalent.
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