Step 1:
The first step to converting 124420.9758399 to a fraction is to re-write 124420.9758399 in the form p/q where p and q are both positive integers. To start with, 124420.9758399 can be written as simply 124420.9758399/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 124420.9758399, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 124420.9758399/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 124420.9758399/1 each by 10000000:
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 124420.9758399 as a fraction:
124421/1 / 1