Question

2/5+4/9

mn giúp mk nha cảm ơn mn

Answer 1

\(\dfrac{2}{5}+\dfrac{4}{9}=\dfrac{18}{45}+\dfrac{20}{45}=\dfrac{38}{45}\)

Answer 2

\(\dfrac{18}{45}+\dfrac{20}{45}=\dfrac{38}{45}\)

Answer 3

\(\dfrac{2}{5}+\dfrac{4}{9}=\dfrac{18}{45}+\dfrac{20}{45}=\dfrac{38}{45}\)

Answer 4

\(\dfrac{2}{5}+\dfrac{4}{9}\)\(=\dfrac{18}{45}+\dfrac{20}{45}=\dfrac{38}{45}\)

Answer 5

38/45