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Sagot :

MAUDMARINE

Bonsoir

A = 2/3 - 7/3 x 8/21

A = (2 x 21) / (3 x 21) - 56/63

A = 42/63 - 56/63

A = - 14/63

A = (7 x - 2) / (7 x 9)

A = - 2/9

B = (3/4 - 5/6) x 3/2

B = [(3 x 3) / (4 x 3) - (5 x 2) / (6 x 2)] x 3/2

B = (9/12 - 10/12 x 3/2

B = - 1/12 x 3/2

B = - 3/24

B = (3 x - 1) / (3 x 8)

B = - 1/8

C = 11 : (2/3 - 5/2)

C = 11 : [(2 x 2) / (3 x 2) - (5 x 3) / (2 x 3)]

C = 11 : (4/6 - 15/6)

C = 11 : (- 11/6)

C = 11 x - 6/11

C = - 66/11

C = - 6.

D = 3/7 - 15/7 : 5/24

D = 3/7 - 15/7 x 24/5

D = (3 x 5) / (7 x 5)  - 360/35

D = 15/35 - 360/35

D = - 345/35

D = (5 x - 69) / (5 x 7)

D = - 69/7

E = (11/7 - 2/5) x 24/7

E = [(11 x 5) / (7 x 5) - (2 x 7) / (5 x 7)] x 24/7

E = (55/35 - 14/35) x 24/7

E = 41/35 x 24/7

E = 984/245

F = 25/15 x (1/18 + 1/24)

F = (5 x 5) / (5 x 3) x [(1 x 4) / (18 x 4) + (1 x 3) / (24 x 3)]

F = 5/3 x (4/72 + 3/72)

F = 5/3 x 7/72

F = 35/216

TELEPHONE16

Réponse :

Bonsoir

Explications étape par étape

Ta phrase est très bizarrement écrite.

Si vous pouvez faire les calculs et les simplifier, cela sera avec un grand merci.

A = 2/3 -7/3 X 8/21

A = 2/3 -56/66

A = 2/3 X 22/22 -56/66

A = 44/66 -56/66

A = -12/66 = -6/33

B = (3/4 -5/6) X 3/2

B = (3/4 X 6/6 -5/6 X 4/4) X 3/2

B = (18/24 -20/24) X 3/2

B = -2/24 X 3/2

B = -6/48 = -1/8

C = 11 + (2/3 -5/2)

C = 11 + (2/3 X 2/2 -5/2 X 3/3)

C = 11 + (4/6 -15/6)

C = 11 -11/6

C = 11 X 6/6 -11/6

C = 66/6 -11/6

C = 55/6

D = 3/7 -15/7 : 5/24

D = 3/7 -15/7 X 24/5

D = 3/7 -360/35

D = 3/7 X 5/5 -360/35

D = 15/35 -360/35

D = -345/35 divisibles par 5/5 = -69/7

E = (11/7 -2/5) X 24/7

E = (11/7 X 5/5 -2/5 X 7/7) X 24/7

E = (55/35 -14/35) X 24/7

E = 41/35 X 24/7

E = 984/245

F = 25/15 X (1/18 +1/24)

F = 5/3 X (1/18 X 24/24 +1/24 X 18/18)

F = 5/3 X ( 24/432 +18/432)

F = 5/3 X 42/432 je simplifie 42/432 : 6/6 = 7/ 72

F = 5/3 X 7/72

F = 35/216

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