Step 1:
The first step to converting 42149.638944933 to a fraction is to re-write 42149.638944933 in the form p/q where p and q are both positive integers. To start with, 42149.638944933 can be written as simply 42149.638944933/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 42149.638944933, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 42149.638944933/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 42149.638944933/1 each by 1000000000:
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 42149.638944933 as a fraction:
126449/3 / 1