Step 1:
The first step to converting 163212910.4531 to a fraction is to re-write 163212910.4531 in the form p/q where p and q are both positive integers. To start with, 163212910.4531 can be written as simply 163212910.4531/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 163212910.4531, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 163212910.4531/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 163212910.4531/1 each by 10000:
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 163212910.4531 as a fraction:
163212910/1 / 1