document.write( "Question 600347: What number can be added to both the numerator and the denominator of this fraction to produce the fraction on the right? 19/37 + ? = 4/7 \n" ); document.write( "
Algebra.Com's Answer #379337 by alicealc(293)\"\" \"About 
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\"%2819%2Bx%29%2F%2837%2Bx%29=4%2F7\"
\n" ); document.write( "\"7%2A%2819%2Bx%29=4%2A%2837%2Bx%29\"
\n" ); document.write( "133 + 7x = 148 + 4x
\n" ); document.write( "7x - 4x = 148 - 133
\n" ); document.write( "3x = 15
\n" ); document.write( "x = 15/3 = 5
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