Explications étape par étape:
B = -55/-88 = 55/88 = (5×11)/(8×11) = 5/8
D. on a ×3 en haut et en bas ,on peut simplifier:
(5×3)/(8×3)= 5/8
E :7/8 -1/4 = 7/8 - (1×2)/(4×2) = 7/8-2/8 = 5/8
F :5 - 35/8 = (5×8)/(1×8) - 35/8 = 40/8 - 35/8 = 5/8
G =(1×8)/(2×8) + 1/16 + 1/6 = 8/16 + 1/16 + 1/16 = 10/16 =5/8
H: (3×2)/(12×2) + (3×3)/(8×3) = 6/24 + 9/24 = 15/24 = 5/8
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Explications étape par étape:
B = -55/-88 = 55/88 = (5×11)/(8×11) = 5/8
D. on a ×3 en haut et en bas ,on peut simplifier:
(5×3)/(8×3)= 5/8
E :7/8 -1/4 = 7/8 - (1×2)/(4×2) = 7/8-2/8 = 5/8
F :5 - 35/8 = (5×8)/(1×8) - 35/8 = 40/8 - 35/8 = 5/8
G =(1×8)/(2×8) + 1/16 + 1/6 = 8/16 + 1/16 + 1/16 = 10/16 =5/8
H: (3×2)/(12×2) + (3×3)/(8×3) = 6/24 + 9/24 = 15/24 = 5/8