Réponse:
F)= 1/45X9/4+7/3
=1/5X1/4+7/3
=1/20+7/3
=143/60
G)=(-5/6+3/4)+(7/6-6/7)
=(-1/12)+(13/42)
= -1/12+13/42
=19/84 .
a plus
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Réponse:
F)= 1/45X9/4+7/3
=1/5X1/4+7/3
=1/20+7/3
=143/60
G)=(-5/6+3/4)+(7/6-6/7)
=(-1/12)+(13/42)
= -1/12+13/42
=19/84 .
a plus