An improper fraction is defined as a fraction where the numerator is greater than or equal to the denominator.
Looking at the options:
- 2025 (not a fraction)
- Start Fraction 20 over 25 End Fraction = 20/25 (proper fraction)
- 729 (not a fraction)
- 7 Start Fraction 2 over 9 End Fraction = 7 + 2/9 = 7.222... (mixed number)
- 297 (not a fraction)
- 2 Start Fraction 9 over 7 End Fraction = 2 + 9/7 = 2 + 1.2857... (mixed number)
From the options, only 2 Start Fraction 9 over 7 End Fraction (2 + 9/7) has a fractional part that is improper (as 9 > 7).
So, 2 Start Fraction 9 over 7 End Fraction can be considered as the choice you may look for if referring to improper fractions in mixed numbers.
For strict interpretation from the initial options you provided, none of them directly represent an improper fraction. If you are strictly looking for an improper fraction without context of mixed numbers, none apply in your provided selection.