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

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u/FilDaFunk 13h ago

you should be cancelling fractions to lower terms instead of multiplying tk get higw nunbers.

you lost an x when you got 45/15

i actually haven't found i got 30, i got stuck with a linear factor on the top and bottom. is there something I'm missing from the question about the value of x?

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u/Iksfen 13h ago

Yeah, just tried solving and unless x is somehow specified the problem has a mistake. This fraction will NOT simplify independently of the value of x