Step 1:
The first step to converting 21160510.815826 to a fraction is to re-write 21160510.815826 in the form p/q where p and q are both positive integers. To start with, 21160510.815826 can be written as simply 21160510.815826/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 21160510.815826, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 21160510.815826/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 21160510.815826/1 each by 1000000:
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 21160510.815826 as a fraction:
21160510/1 / 1