Step 1:
The first step to converting 748597.21312 to a fraction is to re-write 748597.21312 in the form p/q where p and q are both positive integers. To start with, 748597.21312 can be written as simply 748597.21312/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 748597.21312, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 748597.21312/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 748597.21312/1 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 748597.21312 as a fraction:
748597/1 / 1