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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2024-25-4-154-157</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1854</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Краткие сообщения</subject></subj-group></article-categories><title-group><article-title>Об одном вопросе о множестве рациональных чисел, определяемых частными двух подмножеств</article-title><trans-title-group xml:lang="en"><trans-title>About one question about the set of rational numbers determined by the quotients of two subsets</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Штейников</surname><given-names>Юрий Николаевич</given-names></name><name name-style="western" xml:lang="en"><surname>Shteinikov</surname><given-names>Yurii Nikolaevich</given-names></name></name-alternatives><email xlink:type="simple">yuriisht@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральный научный центр «Научно-исследовательский институт системных исследований Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific Research Institute of System Analysis</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>20</day><month>01</month><year>2025</year></pub-date><volume>25</volume><issue>4</issue><fpage>154</fpage><lpage>157</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Штейников Ю.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Штейников Ю.Н.</copyright-holder><copyright-holder xml:lang="en">Shteinikov Y.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.chebsbornik.ru/jour/article/view/1854">https://www.chebsbornik.ru/jour/article/view/1854</self-uri><abstract><p>В настоящей статье мы задаемся целью вывести количественную версию одной задачи о размере множества дробей 𝐴/𝐴 в случае, когда 𝐴 — заданное конечное множество натуральных чисел лежащее в интервале [1, 𝑛], имеющее положительную асимптотическую плотность 𝛼 &gt; 0 при 𝑛 → ∞.</p></abstract><trans-abstract xml:lang="en"><p>In this paper, we aim to derive a quantitative version of a problem on the size of a set of fractions 𝐴/𝐴, in the case where 𝐴 is a given finite set of natural numbers lying in the interval [1, 𝑛], having positive asymptotic density 𝛼 &gt; 0 as 𝑛 → ∞.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>натуральные числа</kwd><kwd>плотность</kwd><kwd>произведение.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>integer numbers</kwd><kwd>density</kwd><kwd>product.</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Силлеруело, Х, Рамана, Д.С., Рамаре, О. 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