Step 1:
The first step to converting 66250.999639575 to a fraction is to re-write 66250.999639575 in the form p/q where p and q are both positive integers. To start with, 66250.999639575 can be written as simply 66250.999639575/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 66250.999639575, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 66250.999639575/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 66250.999639575/1 each by 1000000000:
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 66250.999639575 as a fraction:
66251/1 / 1