Réponse :
bonjour
simplifier les fractions
35/77
=5×7/7×11
on enlève ce qui est commun reste 5/11
-142/-72
=142/72
=2×71/2×2×2×3×3
=71/2×2×3×3
=71/36
57/-12
=3×19/-2×-2×-3
=19/-4
1629/-927
=3×3×181/-3×-3×103
=181/-103
transformer enfractions les quotients
-12.8/40.53=-1280/4053
-4/-7.5=8/15
