Step 1:
The first step to converting 525126489.6442 to a fraction is to re-write 525126489.6442 in the form p/q where p and q are both positive integers. To start with, 525126489.6442 can be written as simply 525126489.6442/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 525126489.6442, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 525126489.6442/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 525126489.6442/1 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 525126489.6442 as a fraction:
525126489/1 / 1