Step 1:
The first step to converting 310307.51218681 to a fraction is to re-write 310307.51218681 in the form p/q where p and q are both positive integers. To start with, 310307.51218681 can be written as simply 310307.51218681/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 310307.51218681, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 310307.51218681/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 310307.51218681/1 each by 100000000:
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 310307.51218681 as a fraction:
620615/2 / 1