Step 1:
The first step to converting 258177.9788918 to a fraction is to re-write 258177.9788918 in the form p/q where p and q are both positive integers. To start with, 258177.9788918 can be written as simply 258177.9788918/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 258177.9788918, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 258177.9788918/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 258177.9788918/1 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 258177.9788918 as a fraction:
258178/1 / 1