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LCM and HCF

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  1. Find the HCF of 1/2, 3/4, and 4/5?
    1. 1/20
    2. 1/40
    3. 20
    4. 15
    5. None of the above
Correct Option: A

Required HCF = (HCF of numerators) / (LCM of denominators)
= (HCF of 1, 3 and 4) / (LCM of 2, 4, and 5)
= 1/20


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