Réponse:
A=4/3
Explications étape par étape:
A=2-5/2÷15/4
=2-5/2×4/15
=2-20/30
=2-20÷10/30÷10
=2-2/3
=2×3/3-2/3
=6/3-2/3
A =4/3
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Réponse:
A=4/3
Explications étape par étape:
A=2-5/2÷15/4
=2-5/2×4/15
=2-20/30
=2-20÷10/30÷10
=2-2/3
=2×3/3-2/3
=6/3-2/3
A =4/3