Gujarat BoardEnglish MediumSTD 7MATHSRational Numbers3 Marks
Question
Subtract:
$\frac{-32}{13}\text{ from }\frac{-6}{5}$
✓
Answer
$\frac{-32}{13}\text{ from }\frac{-6}{5}$
$LCM$ of $13$ and $5 = 65$
$\frac{-6}{5}=\frac{-6\times13}{5\times13}=\frac{-78}{65}$
$\frac{-32}{13}=\frac{-32\times5}{13\times5}=\frac{-160}{65}$
$\therefore\frac{-6}{5}-\Big(\frac{-32}{13}\Big)=\frac{-6}{5}+\frac{32}{13}$
$=\frac{-78}{65}+\frac{160}{65}=\frac{-78+160}{65}$
$=\frac{82}{65}$
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