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Sagot :

VINS

bonjour

A = 13/25 - 2/5

  = 13/25 - 10/25

  =  3/25

B = - 31/18 - 4 /3

  = - 31/18 - 24 /18

  = - 55 /15

C = 1 - 5 /42

   = 42/42 - 5 /42

   = 37/42

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