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2/12+15/6-5/4=
/-linie de fractie


Răspuns :

[tex] \frac{2}{12} + \frac{15}{6} + \frac{5}{4} = \frac{2}{12} + \frac{30}{12} + \frac{15}{12} = \frac{2+30+15}{12} = \frac{47}{12} [/tex]