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2) EFECTUATI
5 SUPRA 6+7 SUPRA 3-2INTREGI SI 3 SUPRA 4



Răspuns :

5/6+7/3-2 3/4=

=5/6+7/3-11/4=

=10/12+28/12-33/12=

=38/12-33/12=5/12