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What is the question ?

Since there are two unknown quantities ('A' and 'B'), we need two equations in order to find the
values of both.

All we can do is massage the numbers around in various ways to make some statements about them,
but we can't find their values without another equation.

(1/A) + (1/B) = 1/3

Multiply each side by (AB):

B + A = AB/3.

Multiply each side by [ 3/(A+B) ]:

AB/(A+B) = 3

(Their product) divided by (their sum) = 3

=============================================

How to find the value of one of them, as soon as you decide on the value of the other one:

A = 1 / (1/3 - 1/B)

and

B = 1 / (1/3 - 1/A)

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14y ago
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Q: What is the answer to 1 over A plus 1 over B equals 1 third?
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