Step 1:
The first step to converting 510481993.17402 to a fraction is to re-write 510481993.17402 in the form p/q where p and q are both positive integers. To start with, 510481993.17402 can be written as simply 510481993.17402/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 510481993.17402, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 510481993.17402/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 510481993.17402/1 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 510481993.17402 as a fraction:
510481993/1 / 1