Step 1:
The first step to converting 830421.3978057 to a fraction is to re-write 830421.3978057 in the form p/q where p and q are both positive integers. To start with, 830421.3978057 can be written as simply 830421.3978057/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 830421.3978057, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 830421.3978057/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 830421.3978057/1 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 830421.3978057 as a fraction:
830421/1 / 1