Step 1:
The first step to converting 43128.644405454 to a fraction is to re-write 43128.644405454 in the form p/q where p and q are both positive integers. To start with, 43128.644405454 can be written as simply 43128.644405454/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 43128.644405454, which in this case is 9. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 43128.644405454/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 43128.644405454/1 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 43128.644405454 as a fraction:
129386/3 / 1