Bonjour est-ce que quelqu’un pourrait te m’aider svp ?

Bonjour,

J = (1/8 - 7/12) : (7/6 + 7/16)

J = [(1 x 3) / (8 x 3) - (7 x 2) / (12 x 2)] : [(7 x 8) / (6 x 8) + (7 x 3) / (16 x 3)]

J = (3/24 - 14/24) : (56/48 + 21/48)

J = - 11/24 : 77/48

J = - 11/24 x 48/77

J = - 528/1 848

J = (264 x 2) / (264 x 7)

J = 2/7.