Question
Add the following rational numbers: $\frac{31}{-4}\text{ and }\frac{-5}{8}$
✓
Answer
$\frac{31}{-4}\text{ and }\frac{-5}{8}$
$LCM$ of $4$ and $8$ is $4$
$\frac{31}{-4}=\frac{31\times2}{-4\times2}=\frac{62}{-8}$
$\frac{31}{-4}+\frac{-5}{8}=\frac{62}{-8}+\frac{-5}{8}$
$=\frac{-62-5}{8}$
$=\frac{-67}{8}$
$LCM$ of $4$ and $8$ is $4$
$\frac{31}{-4}=\frac{31\times2}{-4\times2}=\frac{62}{-8}$
$\frac{31}{-4}+\frac{-5}{8}=\frac{62}{-8}+\frac{-5}{8}$
$=\frac{-62-5}{8}$
$=\frac{-67}{8}$
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