Step 1:
The first step to converting 2063918858.2859 to a fraction is to re-write 2063918858.2859 in the form p/q where p and q are both positive integers. To start with, 2063918858.2859 can be written as simply 2063918858.2859/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 2063918858.2859, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 2063918858.2859/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 2063918858.2859/1 each by 10000:
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 2063918858.2859 as a fraction:
2063918858/1 / 1