Final answer:
The sentence provided is grammatically correct, with a clear subject and predicate. For clarity, it might be beneficial to specify what 'practice' refers to, though the current structure is acceptable and conveys the message that in the Netherlands, Denmark, and Norway, employees typically work between 29-33 hours per week.
Step-by-step explanation:
The sentence 'The practice is widespread in countries like the Netherlands, Denmark, and Norway, where employees work between 29-33 hours per week.' is grammatically correct. This sentence is structured properly with a clear subject ('The practice') and a predicate that describes the subject. However, it may be helpful to specify what 'practice' refers to for clarity. As the sentence stands, it infers that the 'practice' of working 29-33 hours per week is what is widespread in those countries. If you need to be more specific, you might edit the sentence to include the particular practice you are referring to, for example, 'The practice of part-time employment is widespread...' or 'The practice of reduced workweeks is widespread...'. Additionally, the inclusion of these countries serves as an illustrative example of the aforementioned practice. Overall, the sentence is concise, making it easy for readers to understand the point being made.