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Describe the error in the work shown below. Find an expression equivalent to 18 + 30. Factors of 18: 1, 2, 3, 6, 9, 18 Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30 18 + 30 = 6(3 + 10)
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5 votes
Describe the error in the work shown below.

Find an expression equivalent to 18 + 30.
Factors of 18: 1, 2, 3, 6, 9, 18
Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
18 + 30 = 6(3 + 10)

User Unbreakable
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2 Answers

3 votes
The expression is incorrect because 68 is not equivalent to 48 so in order to fix this you must write 18 + 30 = 6(3+5) which gives you 48 as well.

User Aleksander Chelpski
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5.6k points
3 votes
The factor that multiplies with 6 to get 18 is 3 but the factor that multiplies with 6 to get 30 is 5.
The numbers in parenthesis should be a 5 and not a 10.
18 + 30 = 6(3 + 5)
User AlexandruC
by
6.2k points
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