Question Add or subtract: 11 27 30 40 Enter your answer as a reduced fraction. Provide your answer below:

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Add or subtract:
11 27
30 40
Enter your answer as a reduced fraction.
Provide your answer below:
Transcribed Image Text:Question Add or subtract: 11 27 30 40 Enter your answer as a reduced fraction. Provide your answer below:
Expert Solution
Step 1

Sol:-

-1130-2740LeastCommonMultiplierof30,40TheLCMofa,bisthesmallestpositivenumberthatisdivisiblebybothaandbPrimefactorizationof30:  2·3·5Primefactorizationof40:  2·2·2·5Multiplyeachfactorthegreatestnumberoftimesitoccursineither30or40=2·2·2·3·5=120AdjustFractionsbasedontheLCM1130=11·430·4=441202740=27·340·3=81120

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