Bonjour,
3/5 + 5/3 = 9/15 + 25/15 = 34/15
5 - 1/3 = 15/3 - 1/3 = 14/3
(3/5 + 5/3) / (5 - 1/3) = (34/15) / (14/3)
= 34/15 × 3/14
= (17×2×3) / (5×3×7×2)
= 17/35
9/8 - 3/4 = 9/8 - 6/8 = 3/8
11/10 - 1 = 11/10 - 10/10 = 1/10
donc : (9/8 - 3/4) / (11/10 - 1) = (3/8) / (1/10)
= 3/8 × 10/1
= (3×2×5) / (4×2)
= 15/4
Copyright © 2024 ELIBRARY.TIPS - All rights reserved.
Lista de comentários
Bonjour,
3/5 + 5/3 = 9/15 + 25/15 = 34/15
5 - 1/3 = 15/3 - 1/3 = 14/3
(3/5 + 5/3) / (5 - 1/3) = (34/15) / (14/3)
= 34/15 × 3/14
= (17×2×3) / (5×3×7×2)
= 17/35
9/8 - 3/4 = 9/8 - 6/8 = 3/8
11/10 - 1 = 11/10 - 10/10 = 1/10
donc : (9/8 - 3/4) / (11/10 - 1) = (3/8) / (1/10)
= 3/8 × 10/1
= (3×2×5) / (4×2)
= 15/4