3727/100 is already in simplest form. If you divide the numerator (3727) by the denominator (100) you can receive the decimal form of the fraction, so 3720 divided by 100 equals 37.27, OR... 37 with a remainder of 27.
If you want the fraction in mixed number form, take the 37 with a remainder of 27. 37 will be the whole number and 27 will be the numerator, while the denominator stays 100. So, the mixed form will be 37 27/100.