Step 1:
The first step to converting 612570161.31513 to a fraction is to re-write 612570161.31513 in the form p/q where p and q are both positive integers. To start with, 612570161.31513 can be written as simply 612570161.31513/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 612570161.31513, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 612570161.31513/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 612570161.31513/1 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 612570161.31513 as a fraction:
612570161/1 / 1