Question
Bonjour. S'il vous. Plaît vous pouvez m'aider pour mon dm merci d'avance: A=15 sur7 B=-6sur 5 C=2sur3 D=-4sur3. Ranger par ordre croissant les nombres B+C,A-D,A×B,C÷D. Merci
Asked by: USER8442
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Answer (175)
bonjour
a = 15/7
b = - 6/5
c = 2/3
d = - 4/3
B+C = - 6/5 + 2/3 = - 18/15 + 10/15 = - 8/15
A - D = 15/7 - ( - 4/3) = 15/7 + 4/3 = 45/21 + 28/21 = 73/21
AB = 15/7 * - 6/5 = - 90/35 = - 18/ 7
C/D = 2/3 : - 4/3 = 2/3 * - 3/4 = - 6/12 = - 1/2
- 18 /7 < - 8/15 < - 1/2 < 73/21
a = 15/7
b = - 6/5
c = 2/3
d = - 4/3
B+C = - 6/5 + 2/3 = - 18/15 + 10/15 = - 8/15
A - D = 15/7 - ( - 4/3) = 15/7 + 4/3 = 45/21 + 28/21 = 73/21
AB = 15/7 * - 6/5 = - 90/35 = - 18/ 7
C/D = 2/3 : - 4/3 = 2/3 * - 3/4 = - 6/12 = - 1/2
- 18 /7 < - 8/15 < - 1/2 < 73/21