Question

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

Answer 1

Noa made a mistake in step 4.

Step-by-step explanation:

Noa recorded the steps as

Step - 1,

$45\frac{1}{3}-37\frac{5}{8}$

Step - 2,

$45\frac{8}{24}-37\frac{15}{24}$

Step - 3,

$44\frac{32}{24}-37\frac{15}{24}$

Step - 4,

$44\frac{32}{24}-37\frac{15}{24}=8\frac{17}{24}$

In these steps, last step (Step - 4) was not correct.

Because $44\frac{32}{24}-37\frac{15}{24}=(44-37)+(\frac{32}{24}-\frac{15}{24})=7\frac{17}{24}$

Therefore, in place of $8\frac{17}{24}$ there should be $7\frac{17}{24}$.

Learn more about fractions from https://brainly.in/question/980303

Answer 2

Answer:

Hi there! The answer is step 4.

Step-by-step explanation:

I took the Unit test review.