Step 1:
The first step to converting 90120.563310372 to a fraction is to re-write 90120.563310372 in the form p/q where p and q are both positive integers. To start with, 90120.563310372 can be written as simply 90120.563310372/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 90120.563310372, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 90120.563310372/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 90120.563310372/1 each by 1000000000:
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 90120.563310372 as a fraction:
180241/2 / 1