Step 1:
The first step to converting 178739.21321106 to a fraction is to re-write 178739.21321106 in the form p/q where p and q are both positive integers. To start with, 178739.21321106 can be written as simply 178739.21321106/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 178739.21321106, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 178739.21321106/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 178739.21321106/1 each by 100000000:
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 178739.21321106 as a fraction:
714957/4 / 1