Răspuns:
[tex]1 + \frac{3}{5} = \frac{1}{1} {}^{5)} + \frac{3}{5} = \frac{5}{5} + \frac{3}{5} = \frac{8}{5} [/tex]
[tex]1 - \frac{4}{6} = \frac{1}{1} {}^{6)} - \frac{4}{6} = \frac{6}{6} - \frac{4}{6} = \frac{2}{6} [/tex]
[tex] \frac{29}{15} - 1 = \frac{29}{15} {}^{} - \frac{1}{1} = \frac{29}{15} - \frac{1}{1} {}^{15)} = \frac{29}{15} - \frac{15}{15} = \frac{14}{15} [/tex]
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