Question

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Answer 1

c) 5½

$\frac{a + b}{ab} = \frac{ \frac{1}{3} + \frac{2}{5} }{ \frac{1}{3} \times \frac{2}{5} } = \frac{ \frac{11}{15} }{ \frac{2}{15} } = \frac{11}{15} \times \frac{15}{2} = \frac{165}{30} = \frac{11}{2} = \frac{10}{2} + \frac{1}{2} = 5 \frac{1}{2}$