Step 1:
The first step to converting 21212055.012542 to a fraction is to re-write 21212055.012542 in the form p/q where p and q are both positive integers. To start with, 21212055.012542 can be written as simply 21212055.012542/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 21212055.012542, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 21212055.012542/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 21212055.012542/1 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 21212055.012542 as a fraction:
21212055/1 / 1