Answer:

Step-by-step explanation:
We are told that at the end of the day, one-fourth (1/4) of the pie was left.
If the Secretary then took home 1/2 of what was left over, this is 1/2 of 1/4 of the original pie.
To find 1/2 of 1/4, multiply the fractions:

Therefore, the Secretary took home one-eighth (1/8) of the original pie.