Step 1:
The first step to converting 15505199.578755 to a fraction is to re-write 15505199.578755 in the form p/q where p and q are both positive integers. To start with, 15505199.578755 can be written as simply 15505199.578755/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 15505199.578755, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 15505199.578755/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 15505199.578755/1 each by 1000000:
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 15505199.578755 as a fraction:
15505199/1 / 1