Step 1:
The first step to converting 105669.78979314 to a fraction is to re-write 105669.78979314 in the form p/q where p and q are both positive integers. To start with, 105669.78979314 can be written as simply 105669.78979314/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 105669.78979314, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 105669.78979314/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 105669.78979314/1 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 105669.78979314 as a fraction:
422679/4 / 1