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calculati:(17/19+3/19)-1=

Răspuns :

(17/19+3/19)=20/19-1=20/19-19/19=1/19
[tex] (\frac{17}{19} + \frac{3}{19} )-1= \frac{20}{19} - \frac{19}{19} = \frac{1}{19} [/tex]