Question

tìm số tự nhiên x , biết 2/3 < x/6 < 1

Answer 1

\(\dfrac{2}{3}< \dfrac{x}{6}< 1\)

\(\Leftrightarrow\dfrac{4}{6}< \dfrac{x}{6}< \dfrac{6}{6}\)

\(\Leftrightarrow4< x< 6\)

\(\Leftrightarrow x=5\)

Answer 2

Ta có :

\(\dfrac{2}{3}\) <  \(\dfrac{x}{6}\) <1 

=> \(\dfrac{4}{6}\) < \(\dfrac{x}{6}\) < \(\dfrac{6}{6}\)

=> x = 5

Answer 3

5