# Problems on LCM & HCF Mcqs

Q.  The smallest fraction, which each of 6/7, 5/14, 10/21 will divide exactly is_________?

a. 30/7
b. 30/98
c. 60/147
d. 50/294

ANSWER: See Answer

Required fraction = L.C.M of 6/7, 5/14, 10/21

= (L.C.M of 6, 5, 10) / (H.C.F of 7, 14, 21) = 30/7
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