Gujarat BoardEnglish MediumSTD 7MATHSRational Numbers2 Marks
Question
Find the sum $\frac{-8}{19}+\frac{(-2)}{57}$
✓
Answer
As denominators are different we find the $LCM$ of $19 \& 57$
$\frac{-8}{19}+\frac{(-2)}{57} LCM$ of $19$ and $57$ is $57.$
$-8\over 19$=$-8\times 3\over 19\times3$=$-24\over 57$
$\frac{-2}{57}=\frac{-2}{57}$
Thus, $\frac{-8}{19}+\frac{(-2)}{57}=\frac{-24}{57}+\frac{(-2)}{57}$
$=\frac{(-24)+(-2)}{57}=\frac{-26}{57}$
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