Step 1:
The first step to converting 7138812018.1664 to a fraction is to re-write 7138812018.1664 in the form p/q where p and q are both positive integers. To start with, 7138812018.1664 can be written as simply 7138812018.1664/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 7138812018.1664, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 7138812018.1664/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 7138812018.1664/1 each by 10000:
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 7138812018.1664 as a fraction:
7138812018/1 / 1