Step 1:
The first step to converting 1390674.4407621 to a fraction is to re-write 1390674.4407621 in the form p/q where p and q are both positive integers. To start with, 1390674.4407621 can be written as simply 1390674.4407621/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 1390674.4407621, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 1390674.4407621/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 1390674.4407621/1 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 1390674.4407621 as a fraction:
1390674/1 / 1