Step 1:
The first step to converting 193489421.2188 to a fraction is to re-write 193489421.2188 in the form p/q where p and q are both positive integers. To start with, 193489421.2188 can be written as simply 193489421.2188/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 193489421.2188, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 193489421.2188/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 193489421.2188/1 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 193489421.2188 as a fraction:
193489421/1 / 1