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Réponses

2014-08-25T16:00:46+02:00
A = 2/4 + 5/6
A = 2 x 6 / 4 x 6 + 5 x 4 / 6 x 4
A = 12/24 + 20/24
A = 32/24
A = 8 x 4 / 8 x 3
A = 4/3

B = 5/12 - 1/4
B = 5/12 - 1 x 3 / 4 x 3
B = 5/12 - 3/12
B = 2/12
B = 2 x 1 / 2 x 6
B = 1/6

C = 5/18 - 7/9
C = 5/18 - 7 x 2 / 9 x 2
C = 5/18 - 14/18
C = - 9/18
C = 9 x 1 / 9 x 2
C = 1/2

D = 4/15 + 2/5
D = 4/15 + 2 x 3 / 5 x 3
D = 4/15 + 6/15
D = 10/15
D = 5 x 2 / 5 x 3
D = 2/3

E = 1/3 + 1
E = 1/3 + 1 x 3 / 1 x 3
E = 1/3 + 3/3
E = 4/3

F = - 3/7 - 1/14
F = - 3 x 2 / 7 x 2 - 1/14
F = - 6/14 - 1/14
F = - 7/14
F = 7 x - 1 /7 x 2
F = - 1/2

G = 2 - -3/1
G = 2 + 3/1
G = 5

H = 2/9 + 1/6
H = 2 x 2 / 9 x 2 + 1 x 3 / 6 x 3
H = 4/18 + 3/18
H = 9/18
H = 9 x 1 / 9 x 2
H = 1/2

I = 9/15 - - 7/10
I = 9/15 + 7/10
I = 9 x 2 / 15 x 2 + 7 x 3 / 10 x 3
I = 18/30 + 21/30
I = 39/30
I = 3 x 13 / 3 x 10
I = 13/10

J = - 8 + 1/4
J = - 8 x 4 / 1 x 4 + 1/4
J = - 32/4 + 1/4
J = - 31/4

K = 5/30 + 2/15
K = 5/30 + 2 x 2 / 15 x 2
K = 5/30 + 4/30
K = 9/30
K = 3 x 3 / 3 x 10
K = 3/10

L = - 1/14 + - 2/21
L = - 2/14 - 2/21
L = - 2 x 3 / 14 x 3 - 2 x 2 / 21 x 2
L = - 6/42 - 4/42
L = - 10/42
L = 2 x - 5 / 2 x 21
L = - 5/21

M = 3/14 - 2/21
M = 3 x 3 / 14 x 3 - 2 x 2 / 21 x 2
M = 9/42 - 4/42
M = 5/42

N = 5/18 + 1/27
N = 5 x 3 / 18 x 3 + 1 x 2 / 27 x 2
N = 15/54 + 3/54
N = 18/54
N = 18 x 1 / 18 x 3
N = 1/3

O = 1/24 - - 1/30
O = 1/24 + 1/30
O = 1 x 5 / 24 x 5 + 1 x 4 / 30 x 4
O = 5/120 + 4/120
O = 9/120
O = 3 x 3 / 3 x 40
O = 3/40

P = - 1/9 + 1/- 15
P = - 1/9 - 1/15
P = - 1 x 5 / 9 x 5 - 1 x 3 / 15 x 3
P = - 5/45 - 3/45
P = - 8/45

Q = 12/42 + 2/21 - 1/3
Q = 12/42 + 2 x 2 / 21 x 2 - 1 x 14 / 3 x 14
Q = 12/42 + 4/42 - 14/42
Q = 2/42
Q = 2 x 1 / 2 x 21
Q = 1/21

R = 17/42 + 2/21 - 1/3
R = 17/42 + 2 x 2 / 21 x 2 - 1 x 14 / 3 x 14
R = 17/43 + 4/42 - 14/42
R = 7/42
R = 7 x 1 / 7 x 6
R = 1/6

S = 8/35 - - 2/35
S = 8/35 + 2/35
S = 10/35
S = 5 x 2 / 5 x 7
S = 2/7

T = 3/8 - 2 - - 1/8
T = 3/8 - 2 + 1/8
T = 3/8 - 2 x 8 / 1 x 8 + 1/8
T = 3/8 - 16/8 + 1/8
T = - 12/8
T = 4 x - 3 / 4 x 2
T = - 3/2

U = 7/3 x 27/14
U = 189/42
U = 21 x 9 / 21 x 2
U = 9/2

V = - 8/5 x - 15/16
V = 120/80
V = 40 x 3 / 40 x 2
V = 3/2

W = 3/ - 4 : - 9/40
W = - 3/4 : - 9/40
W = - 3/4 x - 40/9
W = 120/36
W = 12 x 10 / 12 x 3
W = 10/3

X = 16/9 x 3/14 x 5/8
X = 48/126 x 5/8
X = 240/1008
X = 48 x 5 / 48 x 21
X = 5/21
Meilleure réponse !
  • Utilisateur Brainly
2014-08-25T16:03:25+02:00
A= 2/4 + 5/6
A= (3*2)/(3*4) + (2*5)/(2*6)
A= 6/12 + 10/12
A= 16/12
A= 4/3

B= 5/12 - 1/4
B= 5/12 - (3*1)/(3*4)
B= 5/12 - 3/12
B= 2/12
B= 1/6

C= 5/18 - 7/9
C= 5/18 - (2*7)/(2*9)
C= 5/18 - 14/18
C= - 9/18
C= - 1/2

D= 4/15 + 2/5
D= 4/15 + (3*2)/(3*5)
D= 4/15 + 6/15
D= 10/15
D= 2/3

E= 1/3 + 1
E= 1/3 + 3/3
E= 4/3

F= - 3/7 - 1/14
F= (- 3*2)/(7*2) - 1/14
F= - 6/14 - 1/14
F= - 7/14
F= - 1/2

G= 2 - -3/1
G= 2 + 3
G= 5

H= 2/9 + 1/6
H= (2*2)/(2*9) + (3*1)/(3*6)
H= 4/18 + 3/18
H= 7/18

I= 9/15 - -7/10
I= (2*9)/(2*15) + (3*7)/(3*10)
I= 18/30 + 21/30
I= 39/30
I= 13/10

J= - 8 + 1/4
J= (-8*4)/4 + 1/4
J= -32/4 + 1/4
J= -31/4

K= 5/30 + 2/15
K= 5/30 + (2*2)/(2*15)
K= 5/30 + 4/30
K= 9/30

L= -1/14 + -2/21
L= (-1*21)/(14*21) - (2*14)/(21*14)
L= - 21/294 - 28/294
L= - 49/294
L= - 1/6

M= 3/14 - 2/21
M= (3*21)/(14*21) - (2*14)/(21*14)
M= 63/294 - 28/294
M= 81/294
M= 27/98

N= 5/18 + 1/27
N= (3*5)/(3*18) + (2*1)/(2*27)
N= 15/54 + 2/54
N= 17/54

O= 1/24 - -1/30
O= 1/24 + 1/30
O= (30*1)/(30*24) + (24*1)/(24*30)
O= 30/720 + 24/720
O= 54/720
O= 3/40

P= - 1/9 + 1/-15
P= - 1/9 - 1/15
P= (- 1*15)/(9*15) - (1*9)/(15*9)
P= - 15/135 - 9/135
P= - 24/135
P= - 8/45

Q= 19/42 + 2/21 - 1/3
Q= 19/42 + (2*2)/(21*2) - (1*14)/(3*14)
Q= 19/42 + 4/42 - 14/42
Q= 9/42
Q= 3/14

R= 17/42 + 2/21 - 1/3
R= 17/42 + (2*2)/(21*2) - (1*14)/(3*14)
R= 17/42 + 4/42 - 14/42
R= 8/42
R= 4/21

S= 8/35 - -2/35
S= 8/35 + 2/35
S= 10/35
S= 2/7

T= 3/8 - 2 - -1/8
T= 3/8 - 16/8 + 1/8
T= - 12/8
T= - 3/2

U= 7/3 * 27/14
U= (7*27)/(3*14)
U= 189/42
U= 9/2

V= -8/5 * -15/16
V= (-8*(-15))/(5*16)
V= 120/80
V= 3/2

W= 3/-4 : -9/40
W= 3/-4 * 40/-9
W= (3*40)/(-4*(-9))
W= 120/36
W= 10/3

X= 16/9 * 3/14 * 5/8
X= (16*3*5)/(9*14*8)
X= 240/1008
X= 5/21

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