Răspuns:
Deci....
[tex] \frac{1}{2} \div \frac{50}{100} - \frac{1}{4} \div \frac{25}{100} = [/tex]
[tex] \frac{1}{2} \times \frac{100}{50} - \frac{1}{4} \times \frac{100}{25} = [/tex]
[tex] \frac{1}{2} \times 2 - \frac{1}{4} \times 4 = [/tex]
[tex]1 - 1 = [/tex]
[tex]0[/tex]
Succes....
