Step 1:
The first step to converting 139635.12128877 to a fraction is to re-write 139635.12128877 in the form p/q where p and q are both positive integers. To start with, 139635.12128877 can be written as simply 139635.12128877/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 139635.12128877, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 139635.12128877/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 139635.12128877/1 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 139635.12128877 as a fraction:
139635/1 / 1