document.write( "Question 195974: -3/7 + -5/21 \n" ); document.write( "
Algebra.Com's Answer #146982 by dkala99(12)\"\" \"About 
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-3/7 - 5 /21
\n" ); document.write( "= -3(3)/7(3)-5/21
\n" ); document.write( "= -9-5/21
\n" ); document.write( "=-14/21
\n" ); document.write( "=-2/3\r
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