Step 1:
The first step to converting 85645.9213272 to a fraction is to re-write 85645.9213272 in the form p/q where p and q are both positive integers. To start with, 85645.9213272 can be written as simply 85645.9213272/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 85645.9213272, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 85645.9213272/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 85645.9213272/1 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 85645.9213272 as a fraction:
85646/1 / 1