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Sagot :

SERENAVARESANO13

Explications étape par étape:

A=3/5×3/4

A=0,45

B=-7/8×2/1

B=-1,75

C=-1/4×-5/8

C=0,15

D=6/5×2/3

D=0,8

DALALTHECLEVEREST

Bonjour :)

Réponse en explications étape par étape :

- Question : Calculer :

A = (3/5) / (4/3)

A = 3/5 * 3/4

A = 9/20

B = - (7/8) / (1/2)

B = - 7/8 * 2

B = - 14/8

B = - (7 * 2)/(4 * 2)

B = - 7/4

C = - (8/5) / - (1/4)

C = - 8/5 * - 4

C = 8/5 * 4

C = 32/5

D = (6/5) / (3/2)

D = 6/5 * 2/3

D = 12/15

D = (4 * 3)/(5 * 3)

D = 4/5

Voilà

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