7/1
The answer will depend on what the fraction is.
7/25 is a proper fraction and there is no sensible way to write it as an improper fraction.
It is simply 7/1 as an improper fraction
0.5714
0.280 as a fraction is 7/25
As a fraction: 0.7 = 7/10
49/7 is the equivalent fraction.
7 7/20
It is: 0.7 = 7/10
4/7
7 as an improper fraction would be 7 over 1 or 7/1
7/2