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crawford184232323234
crawford184232323234
09.11.2020 • 
Mathematics

Noa was walking in the forest and measured the circumference of two trees that he found. The first tree measured 37 and StartFraction 5 over 8 EndFraction inches around, and the second tree measured 45 and one-third inches around. Noa wanted to find the difference of the circumferences of the two trees. He recorded his steps in the table. Steps
Noa’s work

Step 1

45 and one-third minus 37 and StartFraction 5 over 8 EndFraction

Step 2

45 and StartFraction 8 over 24 EndFraction minus 37 and StartFraction 15 over 24 EndFraction

Step 3

44 and StartFraction 32 over 24 EndFraction minus 37 and StartFraction 15 over 24 EndFraction

Step 4

44 and StartFraction 32 over 24 EndFraction minus 37 and StartFraction 15 over 24 EndFraction = 8 and StartFraction 17 over 24 EndFraction

In which step did Noa first make an error?
Step 1
Step 2
Step 3
Step 4

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