Step 1:
The first step to converting 158321.5479762 to a fraction is to re-write 158321.5479762 in the form p/q where p and q are both positive integers. To start with, 158321.5479762 can be written as simply 158321.5479762/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 158321.5479762, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 158321.5479762/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 158321.5479762/1 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 158321.5479762 as a fraction:
316643/2 / 1