Step 1:
The first step to converting 20707.415909207 to a fraction is to re-write 20707.415909207 in the form p/q where p and q are both positive integers. To start with, 20707.415909207 can be written as simply 20707.415909207/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 20707.415909207, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 20707.415909207/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 20707.415909207/1 each by 1000000000:
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 20707.415909207 as a fraction:
103537/5 / 1