Step 1:
The first step to converting 13859498307.378 to a fraction is to re-write 13859498307.378 in the form p/q where p and q are both positive integers. To start with, 13859498307.378 can be written as simply 13859498307.378/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 13859498307.378, which in this case is 3. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 13859498307.378/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 13859498307.378/1 each by 1000:
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 13859498307.378 as a fraction:
13859498307/1 / 1