Răspuns :
[tex] \frac{50}{100} \div |50| = \frac{1}{2} [/tex]
[tex]1 - \frac{1}{2} = \frac{2 \times 1 - 1}{2} = \frac{1}{2} [/tex]
[tex]1 - \dfrac{50}{100} = \dfrac{1}{1} ^{ \times 100} - \dfrac{50}{100} = \dfrac{100}{100} - \dfrac{50}{100} = \dfrac{50}{100} ^{ \div 50} = \dfrac{1}{2} = 0.5[/tex]