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  <head>
    <meta charset="utf-8">
    <title>Fraction mrow</title>
    <link rel="help" href="https://w3c.github.io/mathml-core/#fractions-mfrac">
    <link rel="help" href="https://w3c.github.io/mathml-core/#horizontally-group-sub-expressions-mrow">
    <meta name="assert" content="This test that <mrow> elements can be used as numerator and denominator of fractions.">
    <link rel="match" href="frac-mrow-001-ref.html">
  </head>
  <body style="font-size: 20pt;">
    <p>This test p