Răspuns:
[tex] \frac{15}{4} [/tex]
Explicație pas cu pas:
[tex] \frac{1}{2} + {2} \times ( \frac{25}{100} + {3})[/tex]
[tex] \frac{1}{2} + {2} \times ( \frac{1}{4} + 3)[/tex]
amplificam cu 4
[tex] \frac{1}{2} + {2} \times ( \frac{1}{4} + \frac{12}{4} )[/tex]
[tex] \frac{1}{2} + {2} \times \frac{13}{4} [/tex]
[tex] \frac{1}{2} + \frac{26}{8} [/tex]
simplificam 26 supra 8 cu 2
[tex] \frac{1}{2} + \frac{13}{4} [/tex]
aplificam 1 supra 2 cu 2
[tex] \frac{2}{4} + \frac{13}{4} [/tex]
[tex] \frac{15}{4} [/tex]
