What is -5.71428571 in a fraction?

To convert the decimal -5.71428571 into a fraction, we can first write it as a fraction with the repeating decimal pattern. Since the decimal repeats every 7 digits, we can write it as -57142857/9999999. This fraction can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 7, resulting in the simplified fraction -8163265/1428571.