i added 2 K-1 schedules with losses, but it shows as "0" in "Your Income" section.
That is typical and expected behavior.
The figures from the K-1s you enter are distributed by the software to the various and appropriate forms and schedules.
it is also possible that the losses (generally on lines 1 through 3) are from passive activities and thus are not currently deductible. look to see if there is form 8582.
It actually makes no difference whether the losses from passive activities are currently deductible or not; the K-1 summary will show $0, regardless.