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Svp les mecs/meufs je suis gaver nul en maths donc si vous m’aidiez se serai sympa merci d’avance

Svp Les Mecsmeufs Je Suis Gaver Nul En Maths Donc Si Vous Maidiez Se Serai Sympa Merci Davance class=

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MAUDMARINE

Bonjour

A = (3/2 - 1/3) : (3/4 + 2/3)

A = [(3 x 3) / (2 x 3) - (1 x 2) / (3 x 2)] : [(3 x 3) / (4 x 3) + (2 x 4) / (3 x 4)]

A = (9/6 - 2/6) : (9/12 + 8/12)

A = 7/6 : 17/12

A = 7/6 x 12/17

A = 84/102

A = (6 x 14) / (6 x 17)

A = 14/17

B = 2 + 2/7 : 5/14

B = 2 + 2/7 x 14/5

B = 2 + 28/35

B = (2 x 35) / (1 x 35) + 28/35

B = 70/35 + 28/35

B = 98/35

B = (7 x 14) / (7 x 5)

B = 14/5

C = 3/14 - 3 : 7/5 + 1/2

C = 3/14 - 3 x 5/7 + 1/2

C = 3/14 - 15/7 + 1/2

C = 3/14 - (15 x 2) / (7 x 2) + (1 x 7) / (2 x 7)

C = 3/14 - 30/14 + 7/14

C = - 20/14.

C = (2 x - 10) / (2 x 7)

C = - 10/7.

D = 7/5 + 8/15 : 2/3 - 19/2

D = 7/5 + 8/15 x 3/2 - 19/2

D = (7 x 6) / (5 x 6) + 24/30 - (19 x 15) / (2 x 15)

D = 42/30 + 24/30 - 285/30

D = 219/30

D = (3 x 73) / (3 x 10)

D = 73/10.