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17 supra 4 + 1 supra 2

Răspuns :

17/4+½
Amplificam½ cu 2=>2/4
17/4+2/4=19/4
[tex] \frac{17}{4} + \frac{1}{2} = \frac{17+2}{4} = \frac{19}{4} [/tex]