At the dinosaur dig site, Emek and Luna compared bone pieces found in three zones. Zone A produced 5/8 of a bone, Zone B produced 3/4, and Zone C produced 7/8. To decide where to dig next, they needed to rank the finds. Luna changed 3/4 to 6/8 so all three fractions had the same denominator. Now they could compare the numerators: 5, 6, and 7. Zone C had the most complete find, followed by Zone B and then Zone A. Emek marked Zone C on their map, and they carried their tools there to continue the search.
Challenges
Challenge 1 of 5
Challenges
Challenge 1 of 4
Hint
Look at the denominators of 5/8, 6/8, and 7/8.
Luna changed Zone B's fraction, 3/4, to 6/8 before comparing the three zones. Why was this useful?
It made Zone B's bone piece larger.It gave all three fractions the same numerator.It gave all three fractions the same denominator, making them easier to compare.It changed Zone B's fraction to a whole.Correct! Using eighths makes the three fractions easy to compare by their numerators.
Try again. Think about why fractions with the same denominator are easier to compare.
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Hint
The denominators are the same, so compare the numerators.
Zone A produced 5/8 of a bone and Zone C produced 7/8 of an equal-sized bone. How many eighths more of a bone did Zone C produce than Zone A?
Correct! Zone C produced 2 eighths more of a bone than Zone A.
Try again. Find the difference between 7 eighths and 5 eighths.
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Hint
Compare 2/3 with 5/8 and 3/4. You can use equivalent fractions with denominator 24.
Emek finds a note for a new Zone D showing 2/3 of an equal-sized bone. Which comparison correctly places Zone D among the original three zones?
Zone D has more than Zone C.Zone D has more than Zone B but less than Zone C.Zone D has less than Zone A.Zone D has more than Zone A but less than Zone B.Correct! 2/3 is greater than 5/8 but less than 3/4.
Try again. Rewrite the fractions using the same denominator so you can compare them.
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🎉 Congrats! You finished this challenge set!
