3/5 of money is a unit. ---------
3/4 of cube is a young bear. -------
5/6 of factor is a movie star. -------
3/7 of segment are people. ---------
1/3 of volume is a pronoun.
Deduct the number of letters and you'll get the answer.
For example:
3/4 of cube is a young bear - use only three of the letters in "cube" and you'll get CUB (a young bear).
Now you try the others.