Step 1:
The first step to converting 278418.8974175 to a fraction is to re-write 278418.8974175 in the form p/q where p and q are both positive integers. To start with, 278418.8974175 can be written as simply 278418.8974175/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 278418.8974175, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 278418.8974175/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 278418.8974175/1 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 278418.8974175 as a fraction:
278419/1 / 1