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The three blind mice stole a piece of cheese. In the night, the first mouse ate $\frac{1}{3}$ of the cheese. Later, the second mouse ate $\frac{1}{3}$ of the remaining cheese. Finally, the third mouse ate $\frac{1}{3}$ of what was then left of the cheese.

Between them, what fraction of the cheese did they eat?

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Between them, what fraction of the cheese did they eat?

*This problem is taken from the UKMT Mathematical Challenges.*

View the current weekly problem