Mathématiques
2nde1
1

Bonjour, mes résultats sont il ok ? merci d'avance a) 5/6 - (-3/-5) = 25/30 - (-18/-30) = 7/-30 b) -3 + 7/4 = -12/4 + 7/4 = -5/4 c) 7,5/6 - 11/8 = 30/24 - 33/24 = -3/24 = -1/8 d) 5/12 - 5/3 + 1/6 - 2/9 = 15/36 - 60/36 + 6/36 -8/36 = -47/36 e) 3/7 + 3/4 - 5/2 - 17/8 = 24/56 + 42/56 - 140/56 - 119/56 = 66/56-259/56 = -193/56

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louise74

Bonsoir Abidugun653 a) 5/6 - (-3/-5) = 25/30 - (-18/-30) = 25/30 - 18/30 = 7/30 b) -3 + 7/4 = -12/4 + 7/4 = -5/4 c) 7,5/6 - 11/8 = 30/24 - 33/24 = -3/24 = -1/8 d) 5/12 - 5/3 + 1/6 - 2/9 = 15/36 - 60/36 + 6/36 -8/36 = -47/36 e) 3/7 + 3/4 - 5/2 - 17/8 = 24/56 + 42/56 - 140/56 - 119/56 = 66/56-259/56 = -193/56

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