Question

find rational number between 1/3 and 4/5​

Answer 1

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Given

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$ratoional \: number \: between \: \frac{1}{3} and \: \frac{4}{5} \: \\ \\ = \geqslant$

For finding we should use this formulae

1/2 × ( sum of both numbers )

$\frac{1}{2} \times ( \frac{1}{3} + \frac{4}{5} ) \\ \\ = \geqslant \frac{1}{2} \times ( \frac{5 + 12}{15} ) \\ \\ = \geqslant \frac{1}{2} \times \frac{17}{15} \\ \\ = \geqslant \frac{17}{30}$