Bonjour, Quelqu'un peu m'aidez pour ces 4 calcul ? Merci bcp bonne journée
A= 5/4+7/6
B= 12/-35 × -14/21
C=15/14 ÷ 20/21
D= 4/7 - 2/7 ÷ 2/3
/ = sur
MERCIIII
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