Step 1:
The first step to converting 77142.794622716 to a fraction is to re-write 77142.794622716 in the form p/q where p and q are both positive integers. To start with, 77142.794622716 can be written as simply 77142.794622716/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 77142.794622716, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 77142.794622716/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 77142.794622716/1 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 77142.794622716 as a fraction:
308571/4 / 1