Question

4 + 9/10 = ? giúp ạ :((

Answer 1

\(4+\dfrac{9}{10}\)
\(=\dfrac{40}{10}+\dfrac{9}{10}=\dfrac{49}{10}\)

Answer 2

\(4+\dfrac{9}{10}=\dfrac{4}{1}+\dfrac{9}{10}=\dfrac{40}{10}+\dfrac{9}{10}=\dfrac{49}{10}\)

Answer 3

\(4+\dfrac{9}{10}=\dfrac{40}{10}+\dfrac{9}{10}=\dfrac{40+9}{10}=\dfrac{49}{10}\)