Step 1:
The first step to converting 879980.9872474 to a fraction is to re-write 879980.9872474 in the form p/q where p and q are both positive integers. To start with, 879980.9872474 can be written as simply 879980.9872474/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 879980.9872474, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 879980.9872474/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 879980.9872474/1 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 879980.9872474 as a fraction:
879981/1 / 1