Question

\(\left(\sqrt{1\frac{9}{16}}-\sqrt{\frac{9}{16}}\right)\)

Answer 1

\(\left(\sqrt{1\frac{9}{16}}-\sqrt{\frac{9}{16}}\right)\)

\(=\left(\sqrt{\frac{25}{16}}-\sqrt{\frac{9}{16}}\right)\)

\(=\left(\sqrt{\left(\frac{5}{4}\right)^2}-\sqrt{\left(\frac{3}{4}\right)^2}\right)\)

\(=\left(\frac{5}{4}-\frac{3}{4}\right)=\frac{5-3}{4}=\frac{2}{4}=\frac{1}{2}\)

...Vậy ...................

Answer 2

\(\sqrt{1\frac{9}{16}}-\sqrt{\frac{9}{16}}=\sqrt{\frac{25}{16}}-\sqrt{\frac{9}{16}}\)

\(=\sqrt{\left(\frac{5}{4}\right)^2}-\sqrt{\left(\frac{3}{4}\right)^2}=\frac{5}{4}-\frac{3}{4}=\frac{2}{4}=\frac{1}{2}\)

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Answer 3

\(\sqrt{1\frac{9}{16}}-\sqrt{\frac{9}{16}}\)

\(=\sqrt{\frac{25}{16}}-\sqrt{\frac{9}{16}}\)

\(=\frac{5}{4}-\frac{3}{4}=\frac{2}{4}=\frac{1}{2}\)