<PRE><B>Question 97880</B>
5/12 , 3/20 find the lcd then c onvert each rational expression into an equivelant rational expression with the lcd as the denominator
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The lcd of 12 and 20 is 60
5/12 = (5*5)/(12*5) = 25/60 = 25/lcd
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3/20 = (3*3)/(20*3) = 9/60 = 9/lcd

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Cheers,
Stan H.</PRE>