You can put this solution on YOUR website! What is the least common denominator of
the rational expression 1/35, (r+3)/10r^2
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35 = 5*7
10r^2 = 2*5*r^2
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The lcd must have each factor in its highest power
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lcd = 2*5*7*r^2 = 70r^2
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Cheers,
stan H.