Номер 1249 . Помогите пожалуйста !!!

1) 0.4*1.5 - 1.9*(-0.7) = 0.6 + 1.33 = 1.93

2) 0.4*(-2.3) - 1.9*4.2 = -0.92 - 7.98 = -8.9

3) 0.4* $\frac{2}{3}$ - 1.9*0 = $\frac{4}{15}$

4) 0.4*1 - 1.9*(-1) = 0.4 + 1.9 = 2.3

5) 0.4* $\frac{1}{2}$ - 1.9* $\frac{1}{3}$ = $\frac{1}{5} - \frac{19}{30} = \frac{6-19}{30} = -\frac{13}{30}$

6) 0.4* $(- \frac{2}{5} ) - 1.9*( - \frac{2}{5} )= -\frac{4}{25}- \frac{19}{25} = \frac{23}{25}$