Step 1:
The first step to converting 261803914.1689 to a fraction is to re-write 261803914.1689 in the form p/q where p and q are both positive integers. To start with, 261803914.1689 can be written as simply 261803914.1689/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 261803914.1689, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 261803914.1689/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 261803914.1689/1 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 261803914.1689 as a fraction:
261803914/1 / 1