document.write( "Question 628568: What number must be added to both the numerator and the denominator of the fraction (2/5) to get the fraction (7/8)? \n" ); document.write( "

Algebra.Com's Answer #395731 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+%28+2%2Bx+%29+%2F+%28+5%2Bx+%29+=+7%2F8+\"$
\n" ); document.write( "Multiply both sides by $\"+8%2A%28+5%2Bx+%29+\"$
\n" ); document.write( " $\"+8%2A%28+2%2Bx+%29+=+7%2A%28+5%2Bx+%29+\"$
\n" ); document.write( " $\"+16+%2B+8x+=+35+%2B+7x+\"$
\n" ); document.write( " $\"+x+=+35+-+16+\"$
\n" ); document.write( " $\"+x+=+19+\"$
\n" ); document.write( "check answer:
\n" ); document.write( " $\"+%28+2+%2B+19+%29+%2F+%28+5+%2B+19+%29+=+7%2F8+\"$
\n" ); document.write( " $\"+21+%2F+24+=+7%2F8+\"$
\n" ); document.write( "The left side is
\n" ); document.write( " $\"+%283%2F3%29%2A%287%2F8%29+=+7%2F8+\"$
\n" ); document.write( " $\"+1%2A%287%2F8%29+=+7%2F8+\"$
\n" ); document.write( " $\"+7%2F8+=+7%2F8+\"$
\n" ); document.write( "OK \n" ); document.write( "

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