Step 1:
The first step to converting 21623147.918543 to a fraction is to re-write 21623147.918543 in the form p/q where p and q are both positive integers. To start with, 21623147.918543 can be written as simply 21623147.918543/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 21623147.918543, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 21623147.918543/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 21623147.918543/1 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 21623147.918543 as a fraction:
21623147/1 / 1