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Hilda123
@Hilda123
January 2021
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Svp ça fais 4 fois que je pose la question ! Ecercice 1 svp Jcomprend rien
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nonotata
Verified answer
Bonjour
a = 7/3 - 4/3 : 2/5 = 7/3 -4/3 x 5/2 = 7/3 -20/6 = 7/3 -10/3 = -3/3 = -1
b = 3/7 : 4/21 -5/2 = 3/7 x 21/4 -5/2 = 63/28 =9/4-5/2= 9/4-10/4= -1/4
c = ( 1/4+2/7) : ( 1/4-2/7) = (7/28+8/28) : ( 7/28-8/28) =15/28 : -1/28 = 15/28 x -28 = -15
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Thanks 1
Hilda123
Je dois mettre les parenthèse ?
nonotata
non tu dois le noter comme sur l exercice avec les fractions mais je n ai pas pu le faire comme cela c est pour ca que j ai mis les parentheses
Hilda123
D'accord merci
nonotata
je t en prie
Hilda123
Mais je ne comprend Quesceque les parenthèse représenté
Hilda123
représente *
Hilda123
comprit*
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Verified answer
Bonjoura = 7/3 - 4/3 : 2/5 = 7/3 -4/3 x 5/2 = 7/3 -20/6 = 7/3 -10/3 = -3/3 = -1
b = 3/7 : 4/21 -5/2 = 3/7 x 21/4 -5/2 = 63/28 =9/4-5/2= 9/4-10/4= -1/4
c = ( 1/4+2/7) : ( 1/4-2/7) = (7/28+8/28) : ( 7/28-8/28) =15/28 : -1/28 = 15/28 x -28 = -15