I am pretty sure that the answer is 4/5, hope this helped :)
A square rotated about its center by 360º maps onto itself at 4 different angles of rotation. You can reflect a square onto itself across 4 different lines of reflection.
Answer:

or

Step-by-step explanation:
Divide the numerator and the denominator by the same number:

or
Multiply the numerator and the denominator by the same number:
