Step 1:
The first step to converting 16643146.451399 to a fraction is to re-write 16643146.451399 in the form p/q where p and q are both positive integers. To start with, 16643146.451399 can be written as simply 16643146.451399/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 16643146.451399, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 16643146.451399/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 16643146.451399/1 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 16643146.451399 as a fraction:
16643146/1 / 1