Question
Calcule et donne le resultat le plus simplifié possible. 3eme
A= 2/3 - 7/3 × 8/21 B= (3/4 -5/6) × 3/2
C= 11 ÷ (2/3 - 5/2) D= 3/7 - 15/7 ÷ 5/24
E= (11/7 - 2/5) × 24/7
F= 25/15 × (1/18 + 1/24)
A= 2/3 - 7/3 × 8/21 B= (3/4 -5/6) × 3/2
C= 11 ÷ (2/3 - 5/2) D= 3/7 - 15/7 ÷ 5/24
E= (11/7 - 2/5) × 24/7
F= 25/15 × (1/18 + 1/24)
Asked by: USER9984
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Answer (244)
bonjour, A= 7/3x8/21=56/63 que je simplifie par 7 = 8/9 B= (3/4-5/6) x 3/2 =18-20/24 x 3/2 =-1/12 x 3/2 =-3/24 B=-1/8 C= 11/2/3-5/2 = 11/4-15/6 = 11/-11/6 = 11 x-6/11= -6 C=-6 D=-12/7÷5/24 =-12/7 x 24/5 = -288/35 E=55-14/35÷24/7 = 41/35 x 7/24 = 287/840 simplifiée = 41/120 F= 25/15 x 24+18/432 = 5/3 x 7 / 72 = 35/216