Step 1:
The first step to converting 646062.51109393 to a fraction is to re-write 646062.51109393 in the form p/q where p and q are both positive integers. To start with, 646062.51109393 can be written as simply 646062.51109393/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 646062.51109393, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 646062.51109393/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 646062.51109393/1 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 646062.51109393 as a fraction:
646062/1 / 1