Step 1:
The first step to converting 12928690.934394 to a fraction is to re-write 12928690.934394 in the form p/q where p and q are both positive integers. To start with, 12928690.934394 can be written as simply 12928690.934394/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 12928690.934394, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 12928690.934394/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 12928690.934394/1 each by 1000000:
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 12928690.934394 as a fraction:
12928690/1 / 1