Step 1:
The first step to converting 312331.5171243 to a fraction is to re-write 312331.5171243 in the form p/q where p and q are both positive integers. To start with, 312331.5171243 can be written as simply 312331.5171243/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 312331.5171243, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 312331.5171243/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 312331.5171243/1 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 312331.5171243 as a fraction:
624663/2 / 1