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Calculați 1pe 20:(-1pe 10)-(-3pe 5) va rog repede!!!dau coronița

Răspuns :

[tex] \frac{1}{20} :( \frac{-1}{10} ) + \frac{3}{5} = -\frac{1}{20} ori 10 + \frac{3}{5} = -\frac{1}{2} + \frac{3}{5} = \frac{-5+6}{10} = \frac{1}{10} [/tex]