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Sagot :

Réponse :

Explications étape par étape

Bonjour

-3/7 : -2/3

= -3/7 x -3/2

= 3/7 x 3/2

= (3 x 3)/(2 x 7)

= 9/14

1/3 - 4

= 1/3 - (4 x 3)/3

= 1/3 - 12/3

= (-11/3)

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