Step 1:
The first step to converting 459490.1621625 to a fraction is to re-write 459490.1621625 in the form p/q where p and q are both positive integers. To start with, 459490.1621625 can be written as simply 459490.1621625/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 459490.1621625, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 459490.1621625/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 459490.1621625/1 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 459490.1621625 as a fraction:
459490/1 / 1