Step 1:
The first step to converting 90056.580810378 to a fraction is to re-write 90056.580810378 in the form p/q where p and q are both positive integers. To start with, 90056.580810378 can be written as simply 90056.580810378/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 90056.580810378, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 90056.580810378/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 90056.580810378/1 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 90056.580810378 as a fraction:
180113/2 / 1