Step 1:
The first step to converting 108243872.43512 to a fraction is to re-write 108243872.43512 in the form p/q where p and q are both positive integers. To start with, 108243872.43512 can be written as simply 108243872.43512/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 108243872.43512, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 108243872.43512/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 108243872.43512/1 each by 100000:
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 108243872.43512 as a fraction:
108243872/1 / 1