3005/1002+1003/(1002*2005)
=(3006-1)/1002+(1002+1)/(1002*2005)
=3-1/1002+1/2005+1/(1002*2005)
=3+(1002-2005+1)/(1002*2005)
=3-1002/(1002*2005)
=3-1/2005
=6014/2005
3005/1002+1003/(1002*2005)
=(3006-1)/1002+(1002+1)/(1002*2005)
=3-1/1002+1/2005+1/(1002*2005)
=3+(1002-2005+1)/(1002*2005)
=3-1002/(1002*2005)
=3-1/2005
=6014/2005