Step 1:
The first step to converting 105143928.9487 to a fraction is to re-write 105143928.9487 in the form p/q where p and q are both positive integers. To start with, 105143928.9487 can be written as simply 105143928.9487/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 105143928.9487, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 105143928.9487/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 105143928.9487/1 each by 10000:
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 105143928.9487 as a fraction:
105143928/1 / 1