Step 1:
The first step to converting 645116.1196356 to a fraction is to re-write 645116.1196356 in the form p/q where p and q are both positive integers. To start with, 645116.1196356 can be written as simply 645116.1196356/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 645116.1196356, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 645116.1196356/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 645116.1196356/1 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 645116.1196356 as a fraction:
645116/1 / 1