J’ai ces addition de fraction à faire aidez moi s’il vous plais avec détaille des calculs.

Bonsoir,

A = 1/2 + 2/3

A = (1 x 3) / (2 x 3) + (2 x 2) / (3 x 2)

A = 3/6 + 4/6

A = 7/6

B = 3/5 - 2/7

B = (3 x 7) / (5 x 7) - (2 x 5) / (7 x 5)

B = 21/35 - 10/35

B = 11/35

C = - 3/11 + 1/2

C = (- 3 x 2) / (11 x 2) + (1 x 11) / (2 x 11)

C = - 6/22 + 11/22

C = 5/22

D = - 5/7 - 2/3

D = (- 5 x 3) / (7 x 3) - (2 x 7) / (3 x 7)

D = - 15/21 - 14/21

D = - 29/21

E = - 9/2 - 2/11

E = (- 9 x 11) / (2 x 11) - (2 x 2) / (11 x 2)

E = - 99/22 - 4/22

E = - 103/22

F = - - 3/4 + - 1/5

F = 3/4 - 1/5

F = (3 x 5) / (4 x 5) - (1 x 4) / (5 x 4)

F = 15/20 - 4/20

F = 11/20

G = - 6/7 + 3

G = - 6/7 + (3 x 7) / (1 x 7)

G = - 6/7 + 21/7

G = 15/7

H = 5 - 14/24

H = (5 x 24) / (1 x 24) - 14/24

H = 120/24 - 14/24

H = 106/24

H = (2 x 53) / (2 x 12)

H = 53/12

I = - 7/6 - 5/4

I = (- 7 x 2) / (6 x 2) - (5 x 3) / (4 x 3)

I = - 14/12 - 15/12

I = - 29/12

J = 19/20 - - 4/30

J = 19/20 + 4/30

J = (19 x 3) / (20 x 3) + (4 x 2) / (30 x 2)

J = 57/60 + 8/60

J = 65/60

J = (5 x 13) / (5 x 12)

J = 13/12.

Bonsoir,

A= 1/2+2/3

A= (1x3+2x2)/(2x3)

A= 7/6

B= (3x7-2x5)/(5x7)

B= 11/35

C= (-3x2+ 1x11)/ (11x2)

C= 5/22

D= (-5x3-2x7)/(7x3)

D= -29/21

E= (-9x11-2x2)/(2x11)

E= -103/22

F=  - (-3x5 -1x4)/(4x5)

F=  + (15-4)/20

F= 11/20

G= ( -6+3x7)/7

G= 15/7

H= (5-7/12)

H= (5x12 - 7)/12

H= 53/12

I= (-7x4 - 5x6)/ (6x4)

I= -58/24

I= -29/12