document.write( "Question 64891This question is from textbook Pre-Algebra
\n" ); document.write( ": Find the sum or difference. -3/4 - (-5/18)\r
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Algebra.Com's Answer #45372 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
FIRST WE FIND A COMMON DENOMINATOR FOR 4 & 18 WHICH IS 36 (2*2)(2*9) SINCE A 2 IS COMMON TO BOTH DENOMINATORS WE ONLY NEED TO USE IT ONCE. ALL OTHER NUMBERS ARE MULTIPLIED TO GET THE NEW DENOMINATOR - THUS 2*2*9=36
\n" ); document.write( "-3/4=X/36
\n" ); document.write( "4X=-108
\n" ); document.write( "X=-108/4
\n" ); document.write( "X=-27 THUS WE HAVE -3/4=-27/36
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\n" ); document.write( "5/18=X/36
\n" ); document.write( "18X=180
\n" ); document.write( "X=-180/18
\n" ); document.write( "X=-10 THUS WE HAVE -5/18=-10/36
\n" ); document.write( "-------------------------
\n" ); document.write( "-27/36-(-10/36)
\n" ); document.write( "-27/36+10/36
\n" ); document.write( "-17/36
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