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Sagot :

ELODIE0212

Réponse:

A = 3/4 + 5×3/2×2

A= 3/4 + 15/4

A= 18/4

A= 18÷2/4÷2

A= 9/2

B= 3/4 + 6×3/4×7

B= 3/4 + 18/28

B= 3×7/4×7 + 18/28

B= 21/28 + 18/28

B= 39/28

C= 5×7×11/11×3×5+ 3/18

C= 7/3 +3/18

C= 7×6/3×6 + 3/18

C= 42/18 + 3/18

C= 45/18

C= 45:9/ 18:9

C= 5/2

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