The difference between the reciprocal of two consecutive even numbers is 1 / 40. How many are the two consecutive odd numbers?

Let two numbers be x, x + 2
1/x-1/(x+2)=1/40
2/x(x+2)=1/40
x(x+2)=80
X = 8 or - 10
That is, two numbers are 8,10 or - 8, - 10

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