Step 1:
The first step to converting 178742.9898138 to a fraction is to re-write 178742.9898138 in the form p/q where p and q are both positive integers. To start with, 178742.9898138 can be written as simply 178742.9898138/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 178742.9898138, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 178742.9898138/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 178742.9898138/1 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 178742.9898138 as a fraction:
178743/1 / 1