mfrac-12.test

<<< 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") ])
]
>>> mml
<?xml version='1.0' ?>
<math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mfrac>
      <mn>1</mn>
      <mn>2</mn>
    </mfrac>
    <mo>=</mo>
    <mfrac>
      <mrow>
        <mphantom>
          <mn>1</mn>
        </mphantom>
        <mspace width="0.0em" />
        <mn>1</mn>
      </mrow>
      <mrow>
        <mn>2</mn>
        <mspace width="0.0em" />
        <mphantom>
          <mn>1</mn>
        </mphantom>
      </mrow>
    </mfrac>
  </mrow>
</math>