Step 1:
The first step to converting 711873.21231424 to a fraction is to re-write 711873.21231424 in the form p/q where p and q are both positive integers. To start with, 711873.21231424 can be written as simply 711873.21231424/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 711873.21231424, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 711873.21231424/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 711873.21231424/1 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 711873.21231424 as a fraction:
711873/1 / 1