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Sagot :

Explications étape par étape:

A = 11/5 ÷ (-3)

A= 11/5 × 1/-3

A = 11×1

- ___

5×3

A= -11/15

B = (-3) ÷ 11/5

B = (-3) × 5/11

B = -3×5

____

11

B = -15/11

C = 5/6 ÷ 6/5

C = 5/6 × 5/6

C = 5×5

_____

6×6

C = 25/36

D= 2/-3 ÷ -5/7

D = 2/-3 × -7/5

D = 2×7

____

3×5

D = 14/15

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