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Bonjour Syagrius, ok 37 X 19 = 703/ 76 = 9.25 9.25 X 12 = 111 111 X 19 = 2109 2109 - 209 = 1900 1900/ 19 = 100 X 12 = 1200 209/ 19 = 11 X12 = 132 1200 + 132 = 1332/ 12 = 111 1332/ 37 = 36 36 X 12 = 432/ 9 = 48/ 12 = 4 merci