Question
calculer chaque quotient et donner le résultat sous la forme la plus simple possible
A] 5/7 : 15/18
B] -4/25 : 7/15
C] 24/6 : (-9/-11)
D] -11/-18 : -8/15
E] 18 : -3/5
F] -21/-28 : 4/9
A] 5/7 : 15/18
B] -4/25 : 7/15
C] 24/6 : (-9/-11)
D] -11/-18 : -8/15
E] 18 : -3/5
F] -21/-28 : 4/9
Asked by: USER1296
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226 Answers
Answer (226)
bonjour,
5/7 : 15/18 = 5/7 : 5/6 = 5/7 x 6/5 = 7/6
-4/25 : 7/15 = -4/25 x 15/7 = -4/5 x 3/7 = -12/21
24/6 : -9/-11 = 4 : 9/11 = 4 x 11/9 = 44/9
18 : -3/5 = 18 x -5/3 = -90/3 = -30
-21/-28 : 4/9 = 3/4 x 9/4 =27/16
5/7 : 15/18 = 5/7 : 5/6 = 5/7 x 6/5 = 7/6
-4/25 : 7/15 = -4/25 x 15/7 = -4/5 x 3/7 = -12/21
24/6 : -9/-11 = 4 : 9/11 = 4 x 11/9 = 44/9
18 : -3/5 = 18 x -5/3 = -90/3 = -30
-21/-28 : 4/9 = 3/4 x 9/4 =27/16