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From the sum of $\frac{-18}{51}$ and $\frac{2}{17}$ subtract the sum of $\frac{1}{85}$ and $\frac{-2}{5}$
Given :
The given terms are,
$\frac{-18}{51}$ and $\frac{2}{17}$ , $\frac{1}{85}$ and $\frac{-2}{5}$
To do :
We have to find the sum of $\frac{-18}{51}$ and $\frac{2}{17}$ subtract the sum of $\frac{1}{85}$ and $\frac{-2}{5}$
Solution :
$\frac{-18}{51} +\frac{2}{17} = \frac{(-18+2\times3)}{51}$ (LCM of 51 and 17 is 51)
$= \frac{(-18+6)}{51}$
$=\frac{-12}{51}$
$= \frac{-4}{17}$
$\frac{1}{85} + \frac{-2}{5} = \frac{(1+2\times 17)}{85}$ (LCM of 85 and 5 is 85)
$= \frac{(1+34)}{85}$
$=\frac{35}{85}$
$= \frac{7}{17}$
Therefore,
$(\frac{-18}{51} +\frac{2}{17}) -(\frac{1}{85} + \frac{-2}{5})= \frac{-4}{17} - \frac{7}{17}$
$ =\frac {(-4-7)}{17}$
$= \frac{-11}{17}$.
The difference between the sum of $\frac{-18}{51}$ and $\frac{2}{17}$ and the sum of $\frac{1}{85}$ and $\frac{-2}{5}$ is $\frac{-11}{17}$
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