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Question
Find the value of the following:
(5−1 × 2−1) ÷ 6−1
Sum
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Solution
\[( 5^{- 1} \times 2^{- 1} ) \div 6^{- 1} = \left( \frac{1}{5} \times \frac{1}{2} \right) \div \frac{1}{6}\] → (a−n = 1/(an))
\[= \frac{1}{10} \times 6\]
\[= \frac{3}{5}\]
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The multiplicative inverse of (– 4)–2 is (4)–2.
