Step 1:
The first step to converting 1351372172.6816 to a fraction is to re-write 1351372172.6816 in the form p/q where p and q are both positive integers. To start with, 1351372172.6816 can be written as simply 1351372172.6816/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 1351372172.6816, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 1351372172.6816/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 1351372172.6816/1 each by 10000:
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 1351372172.6816 as a fraction:
1351372172/1 / 1