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Sagot :

Bonsoir.

A = 18/-49×14/27

A = -18/49×14/27

A = -2/49×14/3

A = -2/7×2/3

A = -4/21

B = -3/2:-5/-7

B = 3/2:5/7

B = 3/2×7/5

B = 21/10

C = 3/4:12

C = 3/4×1/12

C = 1/4×1/4

C = 1/16

/ = fraction.

: = divisé

Bonne soirée.

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