Unit 2, Lesson 14
Fraction Comparison Problems
Grade 4
Activity 2
The “li’ is a traditional unit of length in China and some East Asian countries.
Here are the walking distances between the home of a student in China and the places he visits regularly.
- school: li
- library: li
- market: li
- badminton club: li
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Which is a shorter distance from the student’s home:
- His school or the library?
- The market or the badminton club?
- The library or the market?
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A student in the United States walks kilometer (km) to school. These number lines show how 1 kilometer compares to 1 li.
Which student walks a longer distance to school? Use the number lines to show your reasoning.
- Explain why you can’t just compare the fractions and to see which student walks a longer distance.