653/100
No.
4/10
Yes.
47\50
The answer is 25/110 or 1/4.
7/10 is tthe fration
0.2 expressed as a fration is 1/5
3.89 as a fration is 3 89/100
10 times 2/5
150/180 is 5/6 in its simplest form
236 is an integer and so there is no sensible way of writing it as an improper fraction.