Step 1:
The first step to converting 390351763.81272 to a fraction is to re-write 390351763.81272 in the form p/q where p and q are both positive integers. To start with, 390351763.81272 can be written as simply 390351763.81272/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 390351763.81272, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 390351763.81272/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 390351763.81272/1 each by 100000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 390351763.81272 as a fraction:
390351763/1 / 1