a=6:7 et b=4:7 a)a+b; b)a-b; c)ab
Mathématiques
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Question
a=6:7 et b=4:7 a)a+b; b)a-b; c)ab
1 Réponse
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1. Réponse nonotata
a+b = 6/7 +4/7 = 11/7
a-b = 6/7 -4/7 = 2/7
axb = 6/7 x4/7 =24/49