Question

[Lê Thị Bảo Trâm]

\(\dfrac{2}{3}\times\dfrac{4}{5}+\dfrac{1}{3}\times\dfrac{4}{5}\)

Answer 1

[Nguyễn Đức Trí]

\(...=\dfrac{4}{5}x\left(\dfrac{2}{3}+\dfrac{1}{3}\right)\)

\(=\dfrac{4}{5}x1\)

\(=\dfrac{4}{5}\)

Answer 2

[⭐Hannie⭐]

\(\dfrac{2}{3}\times\dfrac{4}{5}+\dfrac{1}{3}\times\dfrac{4}{5}\\ =\dfrac{4}{5}\times\left(\dfrac{2}{3}+\dfrac{1}{3}\right)\\ =\dfrac{4}{5}\times1\\ =\dfrac{4}{5}\)