Answer: 3/8 Step-by-step explanation: 5/8 of the staff are male. The entire staff is represented by the fraction 8/8. Taking 5/8 from this, we are left with 8/8-5/8 = 3/8 of the staff are female.
If you need to determine the subject of this sentence, that would be Dorothy Parker and E.B. White. However, this isn't a simple subject, because there are two people involved. This is why this is called a complete subject.