[tex]a)\ \sqrt{\frac{361}{324}}=\frac{19}{18} \\\\b) \sqrt[2]{\frac{100}{400} } =\frac{10}{20} =\frac{1}{2} \\\\c) \sqrt[2]{\frac{256}{144} } =\frac{16^{:4}}{12_{:4}} =\frac{4}{3} \\\\[/tex]
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[tex]\\a)\sqrt[2]{5,76} = \sqrt[2]{\frac{576}{100} } =\frac{24^{:2}}{10_{:2}} =\frac{12}{5} \\\\b) \sqrt{\frac{4}{36} } =\frac{2^{:2}}{6_{:2}} =\frac{1}{3} \\\\[/tex]
