mfrac-12.test

<<< mml
<?xml version="1.0" encoding="UTF-8"?>

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">  <mfrac>    <mn>1</mn>     <mn>2</mn>   </mfrac>   <mo>=</mo>   <mfrac>    <mrow>      <mphantom>        <mn>1</mn>
      </mphantom>
      <mspace linebreak="newline"></mspace>
      <mn>1</mn>
    </mrow>     <mrow>      <mn>2</mn>
      <mspace linebreak="newline"></mspace>
      <mphantom>
        <mn>1</mn>
      </mphantom>
    </mrow>   </mfrac> </math>
>>> native
[ EFraction NormalFrac (ENumber "1") (ENumber "2")
, ESymbol Rel "="
, EFraction
    NormalFrac
    (EGrouped
       [ EPhantom (ENumber "1") , ESpace (0 % 1) , ENumber "1" ])
    (EGrouped
       [ ENumber "2" , ESpace (0 % 1) , EPhantom (ENumber "1") ])
]