Step 1:
The first step to converting 356209.4487507 to a fraction is to re-write 356209.4487507 in the form p/q where p and q are both positive integers. To start with, 356209.4487507 can be written as simply 356209.4487507/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 356209.4487507, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 356209.4487507/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 356209.4487507/1 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 356209.4487507 as a fraction:
712419/2 / 1