Question

The G.C.M. of the following fractions $\frac{1}{3},\frac{1}{6},\frac{4}{3},\frac{8}{21}$ is

• A. $\frac{8}{42}$
• B. $\frac{1}{42}$
• C. $\frac{4}{43}$
• D. $\frac{11}{42}$

Answer 1

The correct option is B $\frac{1}{42}$

gcm of $\frac{1}{3},\frac{1}{6},\frac{4}{3},\frac{8}{21}$

$\Rightarrow \frac{gcm(1,1,4,8)}{lcm(3,6,3,21)}=\frac{1}{3\times 2\times 7}=\frac{1}{42}$