60 lines
1.2 KiB
Markdown
60 lines
1.2 KiB
Markdown
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---
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id: 5
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localeTitle: 5900f3b61000cf542c50fec8
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challengeType: 5
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title: 'Problem 73: Counting fractions in a range'
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---
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## Description
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<section id='description'>
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Considera la fracción, n / d, donde n y d son enteros positivos. Si n <d and HCF(n,d)=1, it is called a reduced proper fraction.<code> 0 Si enumeramos el conjunto de fracciones adecuadas reducidas para d ≤ 8 en orden ascendente de tamaño, obtenemos:
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1/8, 1/7, 1/6, 1/5, 1/4, 2/7, 1 / 3, 3/8, 2/5, 3/7, 1/2, 4/7, 3/5, 5/8, 2/3, 5/7, 3/4, 4/5, 5/6, 6/7, 7/8
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Se puede ver que hay 3 fracciones entre 1/3 y 1/2.
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¿Cuántas fracciones hay entre 1/3 y 1/2 en el conjunto ordenado de fracciones apropiadas reducidas para d ≤ 12,000?
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</section>
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## Instructions
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<section id='instructions'>
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>euler73()</code> debe devolver 7295372.
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testString: 'assert.strictEqual(euler73(), 7295372, "<code>euler73()</code> should return 7295372.");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function euler73() {
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// Good luck!
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return true;
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}
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euler73();
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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