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Solve the following:$\frac{5}{14} - \frac{5}{21}$
Given:
The given expression is $\frac{5}{14} - \frac{5}{21}$
To do :
We have to solve and find the value of the given expression.
Solution :
LCM of 14 and 21 is,
$14 = 2\times7$
$21 = 3\times7$
LCM of 14 and 21 $= 2\times3\times7 = 42$
Therefore,
$\frac{5}{14} - \frac{5}{21} = \frac{(5\times3-5\times2)}{42}$
$= \frac{(15-10)}{42}$
$=\frac{5}{42}$.
Therefore, the value of $\frac{5}{14} - \frac{5}{21}$ is $\frac{5}{42}$.
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