Step 1:
The first step to converting 212070.9041869 to a fraction is to re-write 212070.9041869 in the form p/q where p and q are both positive integers. To start with, 212070.9041869 can be written as simply 212070.9041869/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 212070.9041869, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 212070.9041869/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 212070.9041869/1 each by 10000000:
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 212070.9041869 as a fraction:
212071/1 / 1