Răspuns:
Explicație pas cu pas:
[tex] \frac{1}{2} + 0.75 - 0.8(3) = \frac{1}{2} + \frac{75 {}^{(25} }{100} - \frac{83 - 8}{90} = \frac{1}{2} + \frac{3}{4} - \frac{75 {}^{(15} }{90} \\ [/tex]
[tex] = \frac{ {}^{6)} 1}{2} + \frac{ {}^{3)} 3}{4} - \frac{ {}^{2)} 5}{6} = \frac{6}{12} + \frac{9}{12} - \frac{10}{12} = \boxed{ \frac{5}{12} } \\ [/tex]
