Question

\(\sqrt{0,49}+\sqrt{25-16}=\)

Answer 1

\(\sqrt{0,49}+\sqrt{25-16}\\ =0,7+\sqrt{9}\\ =0,7+3\\ =3,7\)

Answer 2

\(\sqrt{0,49}+\sqrt{25-16}\)

\(=\sqrt{\dfrac{49}{100}}+\sqrt{9}\)

\(=\dfrac{7}{10}+3\)

\(=\dfrac{7}{10}+\dfrac{3}{1}\)

\(=\dfrac{7}{10}+\dfrac{30}{10}\)

\(=\dfrac{37}{10}=3,7\)