Step 1:
The first step to converting 215995.4900017 to a fraction is to re-write 215995.4900017 in the form p/q where p and q are both positive integers. To start with, 215995.4900017 can be written as simply 215995.4900017/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 215995.4900017, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 215995.4900017/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 215995.4900017/1 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 215995.4900017 as a fraction:
431991/2 / 1