group by clause in sql query

Question

friends ,
I am trying to extract data performing some arithmetic operation (division and modules) for desired result
i applied query 
SELECT S_P_name, S_P_pack,
  SUM(S_P_ttoqty) / S_P_pack AS ost, SUM(S_P_ttoqty) % S_P_pack AS otb,
  SUM(S_P_ssold) / S_P_pack AS sst, SUM(S_P_ttsold) % S_P_pack AS stb,
  SUM(S_P_sqty) / S_P_pack AS pst, SUM(S_P_ttqty) % S_P_pack AS ptb,
  SUM(S_P_savail) / S_P_pack AS ast, SUM(S_P_ttavail) / S_P_pack AS atb,
  SUM(S_P_grsv) AS grs
  FROM STOCK
GROUP BY S_P_name, S_P_pack 
it is giving me result as i want but 
 ost , sst ,pst and ast are giving result of devision in decimal (like 11.916666) but i want it to show like 11 only
help me in getting this value type. thanks in advance . :)