The smallest fraction, which each of 6/7, 5/14, 10/21 will divide exactly is?  Choose the correct choice from the following answers
A) 30/7 B) 30/9 C) 30/2 D) 30/3 E) 30/6
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   30/7nswer:30/7
<result>A</result>
The smallest fraction, which each of 6/7, 5/14, 10/21 will divide exactly is?