Question

${x}^{ - 1} y {}^{ - 1} \div {x}^{ - 1} + {y}^{ - 1}$



solve it urgently
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Answer 1

Step-by-step explanation:

$\frac{1}{x} \times \frac{1}{y} \div \frac{1}{x} + \frac{1}{y} \\ = \frac{ \frac{1}{xy} }{ \frac{x + y}{xy} } \\ = \frac{1}{xy } \times \frac{xy}{x + y} \\ = \frac{1}{x + y}$

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