document.write( "Question 778756: 6/7 - (-8/15) = I cannot remember how to do this type of problem \n" ); document.write( "
Algebra.Com's Answer #474878 by Alan3354(69443)\"\" \"About 
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6/7 - (-8/15)
\n" ); document.write( "= 6/7 + 8/15
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\n" ); document.write( "To add or subtract, find a common denominator.
\n" ); document.write( "The product always works, 7*15 = 105
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\n" ); document.write( "6/7 + 8/15 = 90/105 + 56/105
\n" ); document.write( "= (90 + 56)/105
\n" ); document.write( "= 146/105\r
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