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Sagot :

Bonjour,

B = 2/3 : - 5/6

B = 2/3 x - 6/5

B = - 12/15

B = (3 x - 4) / (3 x 5)

B = - 4/5.

Réponse :

B=2/3*6/-5

B=12/-15

B=-4/5

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