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Victoriaa1
@Victoriaa1
January 2021
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Bonjour,aidez moi svp.
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mazig
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Bonsoir
A = -2/5 : 3/5 + 2/15
1) Commençons par la division :
-2/5 : 3/5 = 2/5 x 5/3 = -10/15
1) Terminons par l'addition :
-10/15 + 2/15 = -8/15
Soit A = -8/15
B = 9/2 - 5/2 : 15/8
L'opèration prioritaire la division :
-5/2 : 15/8 = -5/2 x 8/15 = -40/60 ou -4/6
Puis terminons par la soustraction :
9/12 - (4x2/6x2) = 9/12 - 8/12 = 1/12
B = 1/12
Bon courage
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Je n'arrive pas le 52et le 53 .Aidez moi svp.
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Verified answer
BonsoirA = -2/5 : 3/5 + 2/15
1) Commençons par la division :
-2/5 : 3/5 = 2/5 x 5/3 = -10/15
1) Terminons par l'addition :
-10/15 + 2/15 = -8/15
Soit A = -8/15
B = 9/2 - 5/2 : 15/8
L'opèration prioritaire la division :
-5/2 : 15/8 = -5/2 x 8/15 = -40/60 ou -4/6
Puis terminons par la soustraction :
9/12 - (4x2/6x2) = 9/12 - 8/12 = 1/12
B = 1/12
Bon courage