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Sagot :

a : 81/9x5-1= 405/9-9/9=396/9=44
b : 45,5/6-1=45,5/5=9,1
c : 27/6-1=27/6-6/6=21/6=7/2
d : 17-5/3+2=12/3+2=12/3+6/3=18/3=6

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