Step 1:
The first step to converting 210716.18345803 to a fraction is to re-write 210716.18345803 in the form p/q where p and q are both positive integers. To start with, 210716.18345803 can be written as simply 210716.18345803/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 210716.18345803, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 210716.18345803/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 210716.18345803/1 each by 100000000:
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 210716.18345803 as a fraction:
210716/1 / 1