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Fractions

Algebra Level 2

$\huge \frac{1}{ 2+\frac{1}{2+\frac{1}{2+\frac{1}{2}}} }=\frac{A}{B}$

$A$ and $B$ are coprime positive integers. Find the value of $B-2A$ .

3 9 5 4

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by Zeeshan Ali

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