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Bonsoir,

6/5 + 7/10 = 12/10 + 7/10 = 19/10

16/10 + 3/30 = 16/10 + 1/10 = 17/10

12/5 - 14/10 = 12/5 - 7/5 = 5/5 = 1

4/10 - 6/20 = 4/10 - 3/10 = 1/10

Réponse :

6/5 +7/10 = 12/10 + 7/10 = 19/10

16/10 + 3/30 = 16/10 + 1/10 = 17/10

12/5 - 14/10 = 24/10 - 14/10 = 10/10 = 1

4/10 - 6/20 = 4/10 - 3/10 = 1/10