Answer 1

 We know:

\[\sqrt{75\frac{46}{49}} = \sqrt{\frac{3721}{49}} = \frac{\sqrt{3721}}{\sqrt{49}}\]

Now, let us compute the square roots of the numerator and the denominator separately. 

\[\sqrt{49} = 7\]
\[ \therefore \sqrt{75\frac{46}{49}} = \frac{61}{7}\]