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Répondre :

-8/3 ÷ 4/9 = -8/3 × 9/4 = (-8×9)/(3×4) = (-2×4×3×3)/(3×4) = -2×3 = -6

-3/2 ÷ (-1/18) = 3/2 × 18 = (3×18)/2 = (3×9×2)/2 = 3×9 = 27

7 ÷ 14/3 = 7 × 3/14 = (7×3)/14 = (7×3)/(7×2) = 3/2

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