Question

(0,5 điểm) Tính.

$\dfrac{11}{3} \cdot \dfrac{2}{5}+\dfrac{11}{3} \cdot \dfrac{8}{5}-\dfrac{11}{3}$

Answer 1

11/3 . 2/5 + 11/3 . 8/5 - 11/3

= 11/3 . (2/5 + 8/5 - 1)

= 11/3 . (2 - 1)

= 11/3 . 1

= 11/3

Answer 2

\(\dfrac{11}{3}\)⋅\(\dfrac{2}{5}\)+\(\dfrac{11}{3}\).\(\dfrac{8}{5}\)-\(\dfrac{11}{3}\)

= \(\dfrac{11}{3}\).(\(\dfrac{2}{5}\) + \(\dfrac{8}{5}\) - 1)

= \(\dfrac{11}{3}\).(2 - 1)

= \(\dfrac{11}{3}\) . 1

=\(\dfrac{11}{3}\)