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\frac{\sqrt{5}}{\sqrt{2}}+\frac{8}{2}
Rewrite the square root of the division \sqrt{\frac{5}{2}} as the division of square roots \frac{\sqrt{5}}{\sqrt{2}}.
\frac{\sqrt{5}\sqrt{2}}{\left(\sqrt{2}\right)^{2}}+\frac{8}{2}
Rationalize the denominator of \frac{\sqrt{5}}{\sqrt{2}} by multiplying numerator and denominator by \sqrt{2}.
\frac{\sqrt{5}\sqrt{2}}{2}+\frac{8}{2}
The square of \sqrt{2} is 2.
\frac{\sqrt{10}}{2}+\frac{8}{2}
To multiply \sqrt{5} and \sqrt{2}, multiply the numbers under the square root.
\frac{\sqrt{10}}{2}+4
Divide 8 by 2 to get 4.
\frac{\sqrt{10}}{2}+\frac{4\times 2}{2}
To add or subtract expressions, expand them to make their denominators the same. Multiply 4 times \frac{2}{2}.
\frac{\sqrt{10}+4\times 2}{2}
Since \frac{\sqrt{10}}{2} and \frac{4\times 2}{2} have the same denominator, add them by adding their numerators.
\frac{\sqrt{10}+8}{2}
Do the multiplications in \sqrt{10}+4\times 2.