Question 5(iii)
Name the property under multiplication used in each of the following:
$\frac{- 19}{29} \times \frac{29}{- 19} = 1$

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Solution

$\frac{- 19}{29} \times \frac{29}{- 19} = 1$
The property used in the above operation is the multiplicative inverse property.

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\frac{- 19}{29} \times \frac{29}{- 19} = 1

\frac{- 19}{29} \times \frac{29}{- 19} = 1

Name the property under multiplication used in each of the following:

(i) $\frac{- 4}{5} \times 1 = 1 \times \frac{- 4}{5} = \frac{- 4}{5}$

(ii) $\frac{- 13}{17} \times \frac{- 2}{7} = \frac{- 2}{7} \times \frac{- 13}{7}$

(iii) $\frac{- 19}{29} \times \frac{29}{- 19} = 1$

\frac{- 4}{5} \times 1 = 1 \times \frac{- 4}{5} = - \frac{4}{5}

- \frac{13}{17} \times \frac{- 2}{7} = \frac{- 2}{7} \times \frac{- 13}{17}

\frac{- 19}{29} \times \frac{29}{- 19} = 1

\frac{- 4}{5} \times 1 = 1 \times \frac{- 4}{5}

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