Answer to Question #131417 in Algebra for Rimsha Ahmed

Question #131417

(1/27 - 1/18)

Kindly, tell me how to take L.C.M of this, please.

Thank you.

Expert's answer

Here, we look at the denominators. They are 27 and 18, and they can all divide 54. Now our LCM is 54. Now,

1/27-1/18=2/54 - 3/54 to give -1/54 as the answer.

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