What is the least common denominator for $\frac{2 x}{x - 4} + \frac{x}{4 - x}$ $\frac{2x}{x-4}+\frac{x}{4-x}$ ?

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What is the least common denominator for $\frac{2 x}{x - 4} + \frac{x}{4 - x}$ $\frac{2x}{x-4}+\frac{x}{4-x}$ ?

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Answer 1 · 2014-12-18T12:05:17

$x - 4$ $x-4$ .

When you multiply the second fraction with $- 1$ $-1$ , you get

$\frac{2 x}{x - 4} + \frac{- x}{- (4 - x)} = \frac{2 x}{x - 4} + \frac{- x}{x - 4} = \frac{x}{x - 4}$ $(2x)/(x-4)+(-x)/-(4-x) = (2x)/(x-4)+(-x)/(x-4) = x/(x-4)$

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What is the least common denominator for $\frac{2 x}{x - 4} + \frac{x}{4 - x}$ $\frac{2x}{x-4}+\frac{x}{4-x}$ ?

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What is the least common denominator for 2xx−4+x4−x\frac{2x}{x-4}+\frac{x}{4-x}?

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What is the least common denominator for $\frac{2 x}{x - 4} + \frac{x}{4 - x}$ $\frac{2x}{x-4}+\frac{x}{4-x}$ ?