Evaluate
\frac{4}{5}=0.8
Factor
\frac{2 ^ {2}}{5} = 0.8
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\frac{4\sqrt{5}}{\sqrt{125}}
Factor 80=4^{2}\times 5. Rewrite the square root of the product \sqrt{4^{2}\times 5} as the product of square roots \sqrt{4^{2}}\sqrt{5}. Take the square root of 4^{2}.
\frac{4\sqrt{5}}{5\sqrt{5}}
Factor 125=5^{2}\times 5. Rewrite the square root of the product \sqrt{5^{2}\times 5} as the product of square roots \sqrt{5^{2}}\sqrt{5}. Take the square root of 5^{2}.
\frac{4}{5}
Cancel out \sqrt{5} in both numerator and denominator.
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Limits
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