Usmérněný zlomek
Usměrni zlomek \frac{1}{\sqrt{2}}.
=\frac{\sqrt{2}}{\sqrt{4}}=\frac{\sqrt{2}}{2}
=\frac{\sqrt{2}}{\sqrt{3}}=\frac{\sqrt{2}}{3}
=\frac{\sqrt{3}}{\sqrt{4}}=\frac{\sqrt{3}}{2}
=\frac{\sqrt{2}}{\sqrt{5}}=\frac{\sqrt{2}}{5}
Cílem je dostat odmocninu pryč ze jmenovatele. Nejjednodušší řešení je vždy celý zlomek, tedy jak čitatele, tak jmenovatele, vynásobit číslem, které je dole ve jmenovateli. Poté jen zlomek upravit a dostaneš tak výraz, který již nebude mít ve jmenovateli odmocninu.
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