Final answer:
After removing approximately a quarter of the construction paper, Myrtle is left with three-fourths of the original piece.
Step-by-step explanation:
The question asks about what fraction of construction paper is left after a file (which may be a typo for 'flap' or a specific shape) is removed from a square piece of paper. Assuming the question is about removing a quarter of the construction paper, we can start by visualizing simple fractions. If we remove one quarter, then we are left with three quarters of the original material.
To visualize it, start with an entire square, which represents the whole, or one. If this square is evenly divided into four smaller squares (like cutting a pie into four even pieces), and one of those smaller squares (1/4) is removed, then there are three of those smaller squares left (3/4). Therefore, Myrtle would have three-fourths of the construction paper remaining after removing the 'file'.