Add -25 and its multiplicative inverse-

25 + 52 = 25 52 = 4 2510 = 2910 ...

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Standard VI

Mathematics

Addition of Fractions

Add -25 and...

Question

Add $\frac{- 2}{5}$ and its multiplicative inverse.

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Solution

$\frac{- 2}{5} + \frac{- 5}{2}$
$= \frac{- 2}{5} - \frac{5}{2}$
$= \frac{- 4 - 25}{10}$
$= \frac{- 29}{10}$

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Add −25 and its multiplicative inverse.

−25+−52=−25−52=−4−2510=−2910

Add $\frac{- 2}{5}$ and its multiplicative inverse.

$\frac{- 2}{5} + \frac{- 5}{2}$
$= \frac{- 2}{5} - \frac{5}{2}$
$= \frac{- 4 - 25}{10}$
$= \frac{- 29}{10}$