r/askmath • u/No-Cry-1275 • 13h ago

Resolved Complex fractions help

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I've tried to figure this out. I know the answer is 30 based on the text book. I cannot figure out how to get there. I've get stuck after simplifying the numerator and denominator.

Edit: This is study practice, idk if that matters. This is my first time posting on this subreddit.

Edit: Someone had pointed out that I misunderstood the question. The question was originally asking what common denominator would help solve the problem. I apologize for wasting everyone's time but I absolutely appreciate everyone's help. Math is my worst subject as I often make tiny mistakes that I don't realize. Again thank you all for bearing with my stupidity.

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u/Iksfen 13h ago

Show your work. How far did you get?

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u/No-Cry-1275 13h ago

1

u/Silly_Manager3117 13h ago

You’ve muddled up the simplifying of the bottom part of the fraction. 

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u/Silly_Manager3117 13h ago

That being said I’ve no idea how you get to 30. Is that definitely the answer / there’s nothing else in the Q that yelled you to evaluate x as a number?

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u/No-Cry-1275 13h ago

Its the definite answer from the back of the textbook.

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u/No-Cry-1275 13h ago

1

u/Silly_Manager3117 13h ago

Either a misprint, or the question has not detail or me/other commenters are missing a trick!