Step 1:
The first step to converting 278212213.71238 to a fraction is to re-write 278212213.71238 in the form p/q where p and q are both positive integers. To start with, 278212213.71238 can be written as simply 278212213.71238/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 278212213.71238, which in this case is 5. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 278212213.71238/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 278212213.71238/1 each by 100000:
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 278212213.71238 as a fraction:
278212213/1 / 1