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Sagot :

1) (3/2)-2-(3/2)2=
3/2 - 4/2 - 6/2 =
-7/2
2) (1+1/4)4 : (3.2/0,25)-2=
(4+4/4) / ((3,2*4)-2) =
5/ (12.8-2) =
5/ 10,8 =
5/ 108/10 =
5 * 10/108 =
50/108=
25/54=
2 + 4/54

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