Step 1:
The first step to converting 79218.512142855 to a fraction is to re-write 79218.512142855 in the form p/q where p and q are both positive integers. To start with, 79218.512142855 can be written as simply 79218.512142855/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 79218.512142855, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 79218.512142855/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 79218.512142855/1 each by 1000000000:
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 79218.512142855 as a fraction:
158437/2 / 1