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Sagot :

4/3(1/2-4/5)
=4/3x1/2 - 4/5x4/3
=4/6 - 16/15
=2/3 - 16/15
=10/15 - 16/15
= -6/15

PS: / est la barre de fraction
4/3(1/2-4/5)
4/3(5/10-8/10)
4/3(-3/10)
-12/30 ou -2/5

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