Step 1:
The first step to converting 1638287.4981165 to a fraction is to re-write 1638287.4981165 in the form p/q where p and q are both positive integers. To start with, 1638287.4981165 can be written as simply 1638287.4981165/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 1638287.4981165, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 1638287.4981165/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 1638287.4981165/1 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 1638287.4981165 as a fraction:
1638287/1 / 1