Răspuns:
[tex]a) \: \frac{3}{4} + \frac{5}{4} - \frac{6}{4} = \frac{8}{4} - \frac{6}{4} = \frac{2}{4} [/tex]
[tex]b) \: \frac{12}{10} - \frac{5}{10} + \frac{2}{10} = \frac{7}{10} + \frac{2}{10} = \frac{9}{10} [/tex]
[tex]c) \: \frac{20}{100} - \frac{15}{100} + \frac{13}{100} = \frac{15}{100} + \frac{13}{100} = \frac{28}{100} [/tex]
Sper că te-am ajutat!
