Since Omar only has half of the pie left and needs to share it equally among his 7 friends, we'll need to divide.
So, a pie has 6 pieces and Omar has only 3 pieces left.
Then, we divide 3 by 7. This gives us a REALLY long decimal so we would have to round.
The rounded answer would be 0.43.
Finally, each friend will get forty-three hundredths of the pie that is left.