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Sagot :

Réponse :

bonjour

Explications étape par étape :

A=4/11-2

=4/11 -(2x11)/1x11

=4/11-22/11

=-18/11

B=-3+-1/7

=(-3x7)/1x7 -1/7

=-21/7 -1/7

=-22/7

C=-5/2-7

= -5/2 -(7x2)/1x2

=-5/2 -14/2

=-19/2

D=4-5/-11

=(4x11) /11 +5/11

=44/11+5/11

=49/11

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