# I am trying to do multi step math and keep returning the wrong answer

조회 수: 1 (최근 30일)
Matthew 2024년 4월 19일
댓글: Dyuman Joshi 2024년 4월 19일
I am given the equation and this is my code but it keeps telling me that it is returning the wrong value.
b=(1/7)+((72/13)^2)/(sqrt((125/2)-(25/3)))
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Dyuman Joshi 2024년 4월 19일
The expression and the code match, so you are good.
How is the test case in Grader comparing the value with the output?
Matthew 2024년 4월 19일
Variable b has an incorrect value.
This is all it tells me, I believe she just has a value set that she got from running it. Thank you for looking I will talk to her.

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### 채택된 답변

John D'Errico 2024년 4월 19일
편집: John D'Errico 2024년 4월 19일
Of course it is wrong. Why did you write 72/13? Why 25/3?
I think you don't understand that
8(1/3) is NOT the same thing as
8 + 1/3
Similarly, you see essentially
5 (7/13)
and you are trying to add fractions!
b=(1/7)+((5*7/13)^2)/(sqrt((125/2)-8*1/3))
b = 1.0799
Do you see what you are doing? When you have an expression like that, you should not assume an implicit addition there. I think you are confused because some people will write
5 1/2
as meaning 5 PLUS 1/2, and thus effectively 5.5.
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Sam Chak 2024년 4월 19일
Also be careful when you guys use WolframAlpha.
Case 1: Without space
Case 2: With space
Dyuman Joshi 2024년 4월 19일
Even I took them as mixed fractions and responded accordingly. I was going to ask for a clarification but in the mean time John had already answered the question.

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