Bonjour,
Rappels :
1) 2/3 x 3/4 = 6/12 = 1/2
2) 2/3 : 3/4 = 2/3 x 4/3 = 8/9
3) Les divisions et les multiplications sont prioritaires par rapport aux additions et soustractions.
A = 3/4 - 2/3 : 3/2
= 3/4 - 2/3 x 2/3
= 3/4 - 4/9
= 27/36 - 16/36
= 11/36.
B = 3/4 - 2/3 x 3/2
= 3/4 - 6/6
= 3/4 - 1
= - 1/4.
C = ( 4/3 divisé par 1/2 ) x 3/2
= 4/3 x 2/1 x 3/2
= 24/6
= 4
D = 5 x ( 1 - 1/2 ) : 3
= 5 x 1/2 : 3
= 5 x 1/6
= 5/6
J'espère avoir pu t'aider.
Réponse :
Explications étape par étape
Bonjour
A = 3/4 - 2/3 / 3/2
A = 3/4 - 2/3 x 2/3
A = 3/4 - 4/9
A = 27/36 - 16/36
B = 3/4 - 2/2 x 3/3
B = 3/4 - 1
B = 3/4 - 4/4
C = 4/3 / 1/2 x 3/2
C = 4/3 x 2 x 3/2
C = 4 x 3/3 x 2/2
D = 5 x (1 - 1/2)/3
D = 5 x (2/2 - 1/2)/3
D = 5 x 1/2 / 3
D = 5 x 1/2 x 1/3
D = 5 x 1/6
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Bonjour,
Rappels :
1) 2/3 x 3/4 = 6/12 = 1/2
2) 2/3 : 3/4 = 2/3 x 4/3 = 8/9
3) Les divisions et les multiplications sont prioritaires par rapport aux additions et soustractions.
A = 3/4 - 2/3 : 3/2
= 3/4 - 2/3 x 2/3
= 3/4 - 4/9
= 27/36 - 16/36
= 11/36.
B = 3/4 - 2/3 x 3/2
= 3/4 - 6/6
= 3/4 - 1
= - 1/4.
C = ( 4/3 divisé par 1/2 ) x 3/2
= 4/3 x 2/1 x 3/2
= 24/6
= 4
D = 5 x ( 1 - 1/2 ) : 3
= 5 x 1/2 : 3
= 5 x 1/6
= 5/6
J'espère avoir pu t'aider.
Verified answer
Réponse :
Explications étape par étape
Bonjour
A = 3/4 - 2/3 / 3/2
A = 3/4 - 2/3 x 2/3
A = 3/4 - 4/9
A = 27/36 - 16/36
B = 3/4 - 2/3 x 3/2
B = 3/4 - 2/2 x 3/3
B = 3/4 - 1
B = 3/4 - 4/4
C = 4/3 / 1/2 x 3/2
C = 4/3 x 2 x 3/2
C = 4 x 3/3 x 2/2
D = 5 x (1 - 1/2)/3
D = 5 x (2/2 - 1/2)/3
D = 5 x 1/2 / 3
D = 5 x 1/2 x 1/3
D = 5 x 1/6