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2014-05-11T08:34:41+03:00
Cel mai inteligent răspuns!
2014-05-11T09:03:48+03:00
(-2.8): (0.7)+12 : 2 =  \frac{-28}{10}  \frac{7}{10} + 6 = 

                           =  \frac{-28}{10}  \frac{10}{7} + 6 =

                           =  \frac{-28}{7} + 6 = -4 + 6 = 2
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