Bonjour :
1) 2/3 + -1/6 = 12+(-3)/18 = -9/18 = -1/2
2) -1/6 + 6/2 = -2+30/12 = 28/12 = 7/3
2) 5/2 + 7/4 = 20+14/8 = 34/8 = 17/4
Bon courage.
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Bonjour :
1) 2/3 + -1/6 = 12+(-3)/18 = -9/18 = -1/2
2) -1/6 + 6/2 = -2+30/12 = 28/12 = 7/3
2) 5/2 + 7/4 = 20+14/8 = 34/8 = 17/4
Bon courage.