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Efectuează
123 supra 22 plus 49 supra 11 minus 76 supra 33 repede va rog ​


Răspuns :

123/22 + 49/11 − 76/33 numitor comun (66)

123×3/66 + 49×6/66 − 76×2/66=

= 369/66 + 294/66 − 152/66 =

= 663/66 − 152/66 =

= 511/66