Step 1:
The first step to converting 105128.43042489 to a fraction is to re-write 105128.43042489 in the form p/q where p and q are both positive integers. To start with, 105128.43042489 can be written as simply 105128.43042489/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 105128.43042489, which in this case is 8. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 105128.43042489/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 105128.43042489/1 each by 100000000:
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 105128.43042489 as a fraction:
210257/2 / 1