分数的乘除法怎么算

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select * from tbl_Articles WHERE ArticleID=1924463 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1924463 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1924463 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(482110,1082800,3510516,1172322,1096631,1013061,1106583,1119692,437911,1106942,1116023,1065410,1122434,2805226,1014212,2716923,1103544,1084579,2576095,441851,1095900,676993,1020001,1105695,687430,710170,1190965,1106440,1102787,2453111) ORDER BY field (ArticleID,482110,1082800,3510516,1172322,1096631,1013061,1106583,1119692,437911,1106942,1116023,1065410,1122434,2805226,1014212,2716923,1103544,1084579,2576095,441851,1095900,676993,1020001,1105695,687430,710170,1190965,1106440,1102787,2453111)