Ursula writes −178 as a fraction using the same method she knows for positive mixed numbers. Her work is shown: Multiply the whole number by the denominator: −1⋅8=−8. Add the numerator: −8+7=−1. Write this number over the original denominator: −178=−18. Does this method work to correctly write −178 as a fraction? Complete the statements below to answer the question.
Also, did her method work or not.