Réponse:
a. 1/6 + 5/12 = 2/12 + 5/12 = 7/12
b. Aucune erreur
c. 3/8 + 7/24 × 5 = 3/8 + 7/24 × 5/1 = 3/8 + 35/24 = 9/24 + 35/24 = 44/24 (=11/6)
d. 5 × 3/4 = 5/1 × 3/4 = 15/4
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Réponse:
a. 1/6 + 5/12 = 2/12 + 5/12 = 7/12
b. Aucune erreur
c. 3/8 + 7/24 × 5 = 3/8 + 7/24 × 5/1 = 3/8 + 35/24 = 9/24 + 35/24 = 44/24 (=11/6)
d. 5 × 3/4 = 5/1 × 3/4 = 15/4