Discussion of Question with ID = 016 under HCF-and-LCM

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Question

What is the HCF of ${7/15}$, $1{7/12}$ and 3?

A

${1/60}$.

B

${1/30}$.

C

${1/20}$.

D

${1/15}$.

Soln.
Ans: a

The HCF of numerators 7, 19 and 3 is 1. The LCM of denominators 15, 12 and 1 is 60. So the required HCF of the given fractions is 1/60 = ${1/60}$.


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