Step 1:
The first step to converting 138191413.51408 to a fraction is to re-write 138191413.51408 in the form p/q where p and q are both positive integers. To start with, 138191413.51408 can be written as simply 138191413.51408/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 138191413.51408, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 138191413.51408/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 138191413.51408/1 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 138191413.51408 as a fraction:
138191413/1 / 1