Step 1:
The first step to converting 48512.645 to a fraction is to re-write 48512.645 in the form p/q where p and q are both positive integers. To start with, 48512.645 can be written as simply 48512.645/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 48512.645, which in this case is 3. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 48512.645/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 48512.645/1 each by 1000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 48512.645 as a fraction:
145538/3 / 1