Question 107457
One number is two less than another.
Let one of the numbers be "x".
Let the 2nd number be "x-2"
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Use a rational expression
to represent the sum of the reciprocals of the two numbers
EQUATION:
1/x + 1/(x-2)
= [x-2+x]/[x(x-2)] 
= [2(x-1)]/[x(x-2)]
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Cheers,
Stan H.