Thực hiện phép tính: - 0,5 + 3/2

1) \[ - 0,5 + \frac{3}{2} = \frac{{ - 1}}{2} + \frac{3}{2}\]  

                   \[ = 1\]

 2) \({\left( { - 0,25} \right)^4}{.4^4}\) =  (-0,25.4)4  

                          = (-1)4 = 1

 3) \(\frac{2}{9}.\frac{8}{3} - \frac{{11}}{9}.\frac{8}{3} = \frac{8}{3}.\left( {\frac{2}{9} - \frac{{11}}{9}} \right)\)  

                        \( = \frac{8}{3}.( - 1) =  - \frac{8}{3}\)

 4) \(\frac{{14}}{5} + \left( {2,5 - \frac{9}{5}} \right) = \frac{{14}}{5} - \frac{9}{5} + 2,5\)

                             \( = 1 + 2,5\)\( = 3,5\)