Réponse :
bonjour
M = 2/5 - 4/3 + 7/2
M = 12/30 - 40/30 + 105/30
M = 77/30
N = 2/3 - 5/3 * 3/2
N = 2/3 - 15/6
N = 4/6 - 15 /6
N = - 11 /6
L = ( - 7/4 + 2/4 ) : ( 8/28 + 7/28 )
L = - 5/4 : 15/28
L = - 5/4 * 28/15
L = - 140/60 = 7 /3
P = - 28/5 * - 1/21
P = 28/105
a. inverse de 4/5 * 10/6 = 5/4 x 6/10 = 30/40 = 3/4
b . opposé de - 5 + 1/5 = 5 - 1/5 = 25/5 - 1/5 = 24 /5
c. opposé de - 4 = 4
inverse de 1 /2 = 2
quotient = 4 : 2 = 2
Explications étape par étape
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Réponse :
bonjour
M = 2/5 - 4/3 + 7/2
M = 12/30 - 40/30 + 105/30
M = 77/30
N = 2/3 - 5/3 * 3/2
N = 2/3 - 15/6
N = 4/6 - 15 /6
N = - 11 /6
L = ( - 7/4 + 2/4 ) : ( 8/28 + 7/28 )
L = - 5/4 : 15/28
L = - 5/4 * 28/15
L = - 140/60 = 7 /3
P = - 28/5 * - 1/21
P = 28/105
a. inverse de 4/5 * 10/6 = 5/4 x 6/10 = 30/40 = 3/4
b . opposé de - 5 + 1/5 = 5 - 1/5 = 25/5 - 1/5 = 24 /5
c. opposé de - 4 = 4
inverse de 1 /2 = 2
quotient = 4 : 2 = 2
Explications étape par étape