Réponse :
Explications étape par étape :
Bonsoir
A = 7/15 - 4/15 × 5/8
A = 7/15 - (4×5)/(15×8)
A = 7/15 - (4×5)/(3×5×2×4)
A = 7/15 - 1/6
A = 42/90 -15/90
A = 27 /90 =
A = (3×9)/(9×10)
A = 3/10
B = [ 5/3 + (-7)/9] / [ 4/7 × -14/3]
B = [15/9 - 7/9] / [ - 56 / 21]
B = 8/9 × (-21/56)
B = - (8×21) / (9× 56)
B = - (8×3×7) /(3× 3×8×7)
B = - 1 /3
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Réponse :
Explications étape par étape :
Bonsoir
A = 7/15 - 4/15 × 5/8
A = 7/15 - (4×5)/(15×8)
A = 7/15 - (4×5)/(3×5×2×4)
A = 7/15 - 1/6
A = 42/90 -15/90
A = 27 /90 =
A = (3×9)/(9×10)
A = 3/10
B = [ 5/3 + (-7)/9] / [ 4/7 × -14/3]
B = [15/9 - 7/9] / [ - 56 / 21]
B = 8/9 × (-21/56)
B = - (8×21) / (9× 56)
B = - (8×3×7) /(3× 3×8×7)
B = - 1 /3