Step 1:
The first step to converting 170889.9999117 to a fraction is to re-write 170889.9999117 in the form p/q where p and q are both positive integers. To start with, 170889.9999117 can be written as simply 170889.9999117/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 170889.9999117, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 170889.9999117/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 170889.9999117/1 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 170889.9999117 as a fraction:
170890/1 / 1