Réponse :
A= 12/5-21/45
A = 108/45-21/45 =87/45=29/15
B = -3/7-5/6
B =(-18-35)/42=-53/42
D =-60/-63 = 60/63=20/21
E = (44-10+13)/12=47/12
Explications étape par étape
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Réponse :
A= 12/5-21/45
A = 108/45-21/45 =87/45=29/15
B = -3/7-5/6
B =(-18-35)/42=-53/42
D =-60/-63 = 60/63=20/21
E = (44-10+13)/12=47/12
Explications étape par étape