New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Find the LCM of the following fractions: 4/13,

    5/7 and 7/5 
    A 140 Correct Answer Incorrect Answer
    B 150 Correct Answer Incorrect Answer
    C 1/140 Correct Answer Incorrect Answer
    D 140/155 Correct Answer Incorrect Answer

    Solution

    LCM of fractions = LCM of numerators/HCF of denominators So, L.C.M of numerators = L.C.M of 4, 5 and 7 = 140 H.C.F of denominators = H.C.F of 13, 7 and 5 = 1 Required L.C.M = (140/1) = 140

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