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exercice 43, merci de m‘aider

Exercice 43 Merci De Maider class=

Répondre :

Bonsoir,

A = 2/3 + 5/6 - 1/18

A = (2 x 6) / (3 x 6) + (5 x 3) / (6 x 3) - 1/18

A = 12/18 + 15/18 - 1/18

A = 26/18

A = (2 x 13) / (2 x 9)

A = 13/9.

B = 18/5 : 6

B = 18/5 x 1/6

B = 18/30

B = (6 x 3) / (6 x 5)

B = 3/5.