Bonjour pouvez-vous m'aidez pour cet exercice svp: a.7/11 + .../11 =9/11
b.13/9 - .../9 = 8/9
c.7/13 - .../13 = -2/13
d.-5/7 - .../7= -9/7
Merci
b.13/9 - .../9 = 8/9
c.7/13 - .../13 = -2/13
d.-5/7 - .../7= -9/7
Merci
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