Step 1:
The first step to converting 421173.1770175 to a fraction is to re-write 421173.1770175 in the form p/q where p and q are both positive integers. To start with, 421173.1770175 can be written as simply 421173.1770175/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 421173.1770175, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 421173.1770175/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 421173.1770175/1 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 421173.1770175 as a fraction:
421173/1 / 1