Step 1:
The first step to converting 75718641.421984 to a fraction is to re-write 75718641.421984 in the form p/q where p and q are both positive integers. To start with, 75718641.421984 can be written as simply 75718641.421984/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 75718641.421984, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 75718641.421984/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 75718641.421984/1 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 75718641.421984 as a fraction:
75718641/1 / 1