Maharashtra BoardEnglish MediumSTD 8MathsRational Numbers3 Marks
Question
Simplify:
$\frac{-13}{8}+\frac{5}{36}$
✓
Answer
$\frac{-13}{8}+\frac{5}{36}$
The LCM of the denominator 8 and 36 is 72.
Now,
We will express $\frac{-13}{8}$ and $\frac{5}{36}$ in the form in which it takes danominator as 72.
$\frac{-13}{8}=\frac{-13\times9}{8\times9}=\frac{-117}{72}$
$\frac{5}{36}=\frac{5\times2}{36\times2}=\frac{10}{72}$
So,
$\frac{-117}{72}+\frac{10}{72}$
$=\frac{-117+10}{72}=\frac{-107}{72}$
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