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calculati a)3pe4 +5pe8

Răspuns :

[tex] \frac{3}{4} + \frac{5}{8} = \frac{6}{8} + \frac{5}{8} = \frac{6+5}{8} = \frac{11}{8} [/tex]
3/4 + 5/8 = 6/8 + 5/8 = 11/8