Step 1:
The first step to converting 29490.638807419 to a fraction is to re-write 29490.638807419 in the form p/q where p and q are both positive integers. To start with, 29490.638807419 can be written as simply 29490.638807419/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 29490.638807419, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 29490.638807419/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 29490.638807419/1 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 29490.638807419 as a fraction:
88472/3 / 1