document.write( "Question 64889This question is from textbook Pre-Algebra
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document.write( ": Find the sum or difference. -4/17 + 3/5\r
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Algebra.Com's Answer #45363 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! -4/17+3/5 WE NEED TO FIND A COMMON DENOMINATOR FOR THESE 2 FRACTIONS THUS \n" ); document.write( "17*5=105 WHICH IS COMMON. \n" ); document.write( "NOW WE CONVERT BOTH FRACTIONS TO FRACTION WITH A DENOMINATOR OF 85 \n" ); document.write( "-4/7=X/105 \n" ); document.write( "7X=-4*105 \n" ); document.write( "7X=-420 \n" ); document.write( "X=-420/7 \n" ); document.write( "X=-60 SO -4/7 BECOMES -60/105 \n" ); document.write( "------------------------------------ \n" ); document.write( "3/5=X/105 \n" ); document.write( "5X=315 \n" ); document.write( "X=315/5 \n" ); document.write( "X=63 SO 3/5 BECOMES 63/105 \n" ); document.write( "------------------------------------ \n" ); document.write( "NOW WE CAN SUBTRACT THESE FRACTIONS \n" ); document.write( "63/105-60/105=3/105=1/35 \n" ); document.write( " |