# Mixed fractions

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Adjacency means different things depending on the context:

• $$2x$$ means $$2 \times x$$.
• $$2 \frac{2}{3}$$ means $$2 + \frac{2}{3}$$.

This results in the coincidence $$\sqrt{2 \frac{2}{3}} = 2 \sqrt{\frac{2}{3}}$$.