Step 1:
The first step to converting 729.128 to a fraction is to re-write 729.128 in the form p/q where p and q both are positive integers. To start with, 729.128 can be written as simply 729.128/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 729.128, which in this case is 3. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 729.128/1 each by 10 to the power of that many digits. For instance, for 0.45, there are 2 fractional digits so we would multiply by 100; or for 0.324, since there are 3 fractional digits, we would multiply by 1000. So, in this case, we will multiply the numerator and denominator of 729.128/1 each by 1000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out:
