Simplify without using tables $\frac{2\sqrt{14} \times 3\sqrt{21}}{7\sqrt{24} \times 2\sqrt{98}}$

\frac{3\sqrt{14}}{4}\)

$\frac{3\sqrt{2}}{4}$

$\frac{3\sqrt{14}}{28}$

$\frac{3\sqrt{2}}{28}$

Correct answer is D

$\frac{2\sqrt{14} \times 3\sqrt{21}}{7 \sqrt{24} \times 2\sqrt{98}}$ = $\frac{6\sqrt{14} \times 3 \times \sqrt{7} \times \sqrt{3}}{7 \times 2 \sqrt{6} \times \sqrt{7} \times \sqrt{14}}$

= $\frac{3\sqrt{3}}{14\sqrt{6}}$

= $\frac{3\sqrt{3}}{14\sqrt{2} \times \sqrt{3}}$

= $\frac{3\sqrt{2}}{28}$

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