Step 1:
The first step to converting 356859.99915528 to a fraction is to re-write 356859.99915528 in the form p/q where p and q are both positive integers. To start with, 356859.99915528 can be written as simply 356859.99915528/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 356859.99915528, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 356859.99915528/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 356859.99915528/1 each by 100000000:
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 356859.99915528 as a fraction:
356860/1 / 1