8th Class Mathematics Rational Numbers Question Bank Numbers

  • question_answer
    The L.C.M. of the fractions \[\frac{5}{16},\frac{15}{24}\] and \[\frac{25}{8}\] is    

    A)  \[\frac{5}{48}\]                                 

    B)  \[\frac{5}{8}\]

    C)  \[\frac{75}{48}\]                               

    D)  \[\frac{75}{8}\]        

    Correct Answer: D

    Solution :

    L.C.M. of \[\frac{5}{16},\frac{15}{24}\] and  \[\frac{25}{8}\] \[\text{=}\frac{\text{L}\text{.C}\text{.M}\text{. of numerators}}{\text{H}\text{.C}\text{.F}\text{. of denominators}}\] L.C.M. of 5, 15 and 25 is 75. H.C.F. of 16, 24 and 8 is 8. The HCF of the given fractions \[=\frac{75}{8}\]


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