Step 1:
The first step to converting 678212.4357947 to a fraction is to re-write 678212.4357947 in the form p/q where p and q are both positive integers. To start with, 678212.4357947 can be written as simply 678212.4357947/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 678212.4357947, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 678212.4357947/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 678212.4357947/1 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 678212.4357947 as a fraction:
678212/1 / 1