Step 1:
The first step to converting 13877.187428913 to a fraction is to re-write 13877.187428913 in the form p/q where p and q are both positive integers. To start with, 13877.187428913 can be written as simply 13877.187428913/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 13877.187428913, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 13877.187428913/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 13877.187428913/1 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 13877.187428913 as a fraction:
69386/5 / 1