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# help plz

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$a$ and $b$ are positive integers smaller than $10$ such that $\frac{ab}{a + b} = \frac{12}{7}$. Find all possible values of a and b

Aug 24, 2021

#1
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(a,b) = (2,5).

Aug 24, 2021
#2
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(a,b)=(3,4) and (4,3)

Aug 24, 2021