Step 1:
The first step to converting 144845.3990625 to a fraction is to re-write 144845.3990625 in the form p/q where p and q are both positive integers. To start with, 144845.3990625 can be written as simply 144845.3990625/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 144845.3990625, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 144845.3990625/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 144845.3990625/1 each by 10000000:
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 144845.3990625 as a fraction:
289691/2 / 1