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You can put this solution on YOUR website!
all numbers undefined for 2/4x+5
\n" ); document.write( "Is that a question?
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\n" ); document.write( "Divide and Simplify 5/t divided by 10/t
\n" ); document.write( "Multiply extremes and means - NUM = extremes = 5t
\n" ); document.write( "DEN = means = 10t
\n" ); document.write( "5t/10 = 1/2
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\n" ); document.write( "Subtract and simplify 13/d-8 - 13/8-d
\n" ); document.write( "(d-8) = -(8-d)
\n" ); document.write( "--> 13/(d-8) + 13/(d-8)
\n" ); document.write( "= 26/(d-8)
\n" ); document.write( "Use parentheses. That could be (13/d) - 8 - (13/8) - d, an entirely different problem.
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\n" ); document.write( "add and simplify 7/15r + 4/9r
\n" ); document.write( "In class, they harp on the LCD for this type of problem, finding it, using it, etc.
\n" ); document.write( "You can multiply to the 2 DENs and use that, it will always work. You have to reduce the results, anyway. \r
\n" ); document.write( "\n" ); document.write( "Don't waste time on a test finding the LEAST common denominator, just find A common denominator (unless the problem asks for the LCD).
\n" ); document.write( "7/15r + 4/9r
\n" ); document.write( "Common DEN = 135r (no need to use r^2)
\n" ); document.write( "=63/135r + 60/135r
\n" ); document.write( "= 123/135r
\n" ); document.write( "= 41/45r\r
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