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[tex]( -\frac{3}{10} + \frac{4}{15} ) * \frac{5}{2} [/tex]


Cum se rezolva ?


Răspuns :

[tex]\displaystyle \left(- \frac{3}{10} + \frac{4}{15} \right) \cdot \frac{5}{2} =\left(- \frac{9}{30} + \frac{8}{30} \right ) \cdot \frac{5}{2} =- \frac{1}{30} \cdot \frac{5}{2} =- \frac{5}{60} =- \frac{1}{12} [/tex]