Question

$( -\frac{3}{10} + \frac{4}{15} ) * \frac{5}{2}$


Cum se rezolva ?

Answer 1

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