Step 1:
The first step to converting 167459.421789 to a fraction is to re-write 167459.421789 in the form p/q where p and q are both positive integers. To start with, 167459.421789 can be written as simply 167459.421789/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 167459.421789, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 167459.421789/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 167459.421789/1 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 167459.421789 as a fraction:
334919/2 / 1