Question

Số sau bằng bao nhiêu ?

 

2\(\frac{1}{2}\)

Answer 1

\(2\frac{1}{2}=\frac{4}{2}=\frac{2}{1}=2\)

Answer 2

5/2hoac 2,5

Answer 3

Mình nghĩ bằng 3

Answer 4

\(2\frac{1}{2}\) = \(\frac{2x2+1}{2}\) = \(\frac{5}{2}\)

Answer 5

\(2\frac{1}{2}=2,5\)

Answer 6

\(2\frac{1}{2}=\frac{5}{2}=\frac{5\times5}{2\times5}=\frac{25}{10}=2,5\)