Question

the square root of the following rational number is 56/169 ​

Answer 1

7.48/13

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Answer 2

$\sqrt{ \frac{56}{169} }$

$= \frac{ \sqrt{56} }{ \sqrt{169} }$

$= \frac{ \sqrt{2 \times 4 \times 7} }{ \sqrt{13 \times 13} }$

$= \frac{ 2\sqrt{14} }{13}$