Finding the long running queries

Hello, I am able to find the long running queries in my database as below.
SQL> select sid,serial#
2 from v$session_longops
3 where time_remaining > 0
4 order by time_remaining desc;
SID SERIAL#
1100 4411
1383 3912
1295 2493
SQL>
With this info, i want to find out what sql code related to these (SID,SERIAL#). The SQL code comes from v$sqlarea. But i am not able to join v$session_longops with v$sqlarea. Any help is highly appreciated.
Here is my database version.
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for Linux: Version 10.2.0.4.0 - Production
NLSRTL Version 10.2.0.4.0 - Production

Thank you!!!
select
A.SID ,
A.SERIAL# ,
A.OPNAME ,
A.TARGET ,
A.TARGET_DESC,
A.SOFAR ,
A.TOTALWORK ,
A.UNITS ,
A.START_TIME ,
A.LAST_UPDATE_TIME ,
A.ELAPSED_SECONDS ,
A.CONTEXT ,
A.MESSAGE ,
A.USERNAME ,
B.sql_fulltext
from     v$session_longops a,
v$sqlarea b
where a.sql_id = b.sql_id
and     time_remaining > 0
order by time_remaining desc

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>
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