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Cum se rezolva 2supra5 * 7supra3- 4supra5


Răspuns :

2/5 x 7/3 -4/5=14/15-4/5=14/15-4*3/15=(14-12)/15=2/15
[tex] \frac{2}{5} * \frac{7}{3} - \frac{4}{5} = \frac{14}{15} - \frac{4}{5} = \frac{14}{15} - \frac{12}{15} = \frac{2}{15} [/tex]