Step 1:
The first step to converting 918330789.5643 to a fraction is to re-write 918330789.5643 in the form p/q where p and q are both positive integers. To start with, 918330789.5643 can be written as simply 918330789.5643/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 918330789.5643, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 918330789.5643/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 918330789.5643/1 each by 10000:
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 918330789.5643 as a fraction:
918330789/1 / 1