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.