Répondre :

-100/60*(-6/400)
=1/4*1/10
=1/40

-100*11/300*(-5/22)
=1/3*1/2*5
=5/6
= -100/60 x (-6/400)
= 600/24 000
= 1/40 <== Simplifier

= -100 x 11/300 x (-5/22)
= -11/3 x (-5/22)
= 5/6 <== Simplifier

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