Step 1:
The first step to converting 390018990 to a fraction is to re-write 390018990 in the form p/q where p and q are both positive integers. To start with, 390018990 can be written as simply 390018990/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 390018990, which in this case is 0. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 390018990/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 390018990/1 each by 1:
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 390018990 as a fraction:
390018990/1 / 1