Evaluate
\frac{9\sqrt{10}}{20}\approx 1.423024947
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\frac{6\times 3\sqrt{2}}{40}\sqrt{5}
Express 6\times \frac{3\sqrt{2}}{40} as a single fraction.
\frac{6\times 3\sqrt{2}\sqrt{5}}{40}
Express \frac{6\times 3\sqrt{2}}{40}\sqrt{5} as a single fraction.
\frac{18\sqrt{2}\sqrt{5}}{40}
Multiply 6 and 3 to get 18.
\frac{18\sqrt{10}}{40}
To multiply \sqrt{2} and \sqrt{5}, multiply the numbers under the square root.
\frac{9}{20}\sqrt{10}
Divide 18\sqrt{10} by 40 to get \frac{9}{20}\sqrt{10}.
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