Răspuns:
[tex] \frac{1}{2} + \frac{1}{5} = \frac{5 \times 1 + 2 \times 1}{10} = \frac{7}{10} [/tex]
[tex] \frac{7}{10} - \frac{1}{10} = \frac{7 - 1}{10} = \frac{6}{10} = \frac{3 \times 2}{5 \times 2} = \frac{3}{5} [/tex]
REZULTATUL FINAL :
[tex] \frac{1}{2} + \frac{1}{5} - \frac{1}{10} = \frac{3}{5} [/tex]
Mai sus ai cum am calculat
SUCCES ! ;)
