Step 1:
The first step to converting 261803915.45897 to a fraction is to re-write 261803915.45897 in the form p/q where p and q are both positive integers. To start with, 261803915.45897 can be written as simply 261803915.45897/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 261803915.45897, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 261803915.45897/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 261803915.45897/1 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 261803915.45897 as a fraction:
261803915/1 / 1