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Calculati: 1\2-(1\4-1\8)=

Răspuns :

1\2-(0.25-0.125)=1\2-0.125
                      =0.5-0.125
                     =0.375
[tex]\displaystyle \frac{1}{2} -\left( \frac{1}{4} - \frac{1}{8} \right )= \frac{1}{2} - \left( \frac{2}{8} - \frac{1}{8} \right )= \frac{1}{2} - \frac{1}{8} = \frac{4}{8} - \frac{1}{8} = \frac{3}{8} [/tex]