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It's repetitive and I'm just confused on what to do; I know we have to find a LCD but the fraction-over-fraction-over-fraction is throwing me off.

$$x + \frac{1}{x+\frac{1}{x+\frac{1}{x}}}$$

grg
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1 Answers1

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\begin{align} x+\frac{1}{x+\frac{1}{x+\frac{1}{x}}} &= x+\frac{1}{x+\frac{1}{\frac{x^2+1}{x}}}\\&= x+\frac{1}{x+\frac{x}{x^2+1}}\\&= x+\frac{1}{\frac{x^3+2x}{x^2+1}}\\&= x+\frac{x^2+1}{x^3+2x}\\&= \frac{x^4+3x^2+1}{x^3+2x} \end{align}

Siong Thye Goh
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barak manos
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