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Sagot :

Réponse :

A = 210/280=21/28= 7*3/7*4 = 3/4 = 0,75  decimal

B = -108/27 = -36*3/9*3 = -36/9 = -4*9/9 = -4

C = 3,24 decimal

D = 105/45=21*5/5*9 = 21/9= 3*7/3*3 = 7/3

Explications étape par étape

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