Réponse:
Bonjour,
17) 320/500= (320x100)/500= 64%
19) 49/70= (49x100)/70= 70%
20) 60% de 500= (60x500)/100= 300g
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Réponse:
Bonjour,
17) 320/500= (320x100)/500= 64%
19) 49/70= (49x100)/70= 70%
20) 60% de 500= (60x500)/100= 300g