bonjour
le premier multiple non nul est 36
4 = 2²
12 = 2 ² x 3
18 = 2 x 3 ²
= - 7/12 + 1/4 - 5 /18
= - 21/36 + 9/36 - 10/36
= - 22 /36
= - 11/18
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bonjour
le premier multiple non nul est 36
4 = 2²
12 = 2 ² x 3
18 = 2 x 3 ²
= - 7/12 + 1/4 - 5 /18
= - 21/36 + 9/36 - 10/36
= - 22 /36
= - 11/18