52 is an integer, not a fraction. But you could express it as a fraction in the form 52/1.
Find the GCF of the numerator and the denominator and divide them both by it. If the GCF is 1, the fraction is in its simplest form.
Yes and 0.54 is 27/50 as a fraction in its simplest form
2.045 = 409/200
0.50 = 1/2
I could, if I knew what was to be expressed in such a manner.