document.write( "Question 4955: What is the fraction? So, that it is equivalent to the fraction with the indicated denominator.\r
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document.write( "5/7 = ?/21 \r
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Algebra.Com's Answer #2456 by Hungryfrog(2)![]() ![]() ![]() 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. \n" ); document.write( " |