mfrac-10.test

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

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">  <mfrac>    <mn>4</mn>     <mrow>      <mn>2</mn>       <mo>+</mo>       <mfrac>        <mn>3</mn>         <mrow>          <mn>1</mn>           <mo>+</mo>           <mfrac>            <mn>1</mn>             <mn>2</mn>           </mfrac>         </mrow>       </mfrac>     </mrow>   </mfrac>   <mo>=</mo>   <mfrac>    <mrow>      <mn>1</mn>       <mo>+</mo>       <mfrac>        <mn>9</mn>         <mrow>          <mn>2</mn>           <mo>+</mo>           <mfrac>            <mn>1</mn>             <mn>4</mn>           </mfrac>         </mrow>       </mfrac>     </mrow>     <mn>5</mn>   </mfrac> </math>
>>> native
[ EFraction
    NormalFrac
    (ENumber "4")
    (EGrouped
       [ ENumber "2"
       , ESymbol Bin "+"
       , EFraction
           NormalFrac
           (ENumber "3")
           (EGrouped
              [ ENumber "1"
              , ESymbol Bin "+"
              , EFraction NormalFrac (ENumber "1") (ENumber "2")
              ])
       ])
, ESymbol Rel "="
, EFraction
    NormalFrac
    (EGrouped
       [ ENumber "1"
       , ESymbol Bin "+"
       , EFraction
           NormalFrac
           (ENumber "9")
           (EGrouped
              [ ENumber "2"
              , ESymbol Bin "+"
              , EFraction NormalFrac (ENumber "1") (ENumber "4")
              ])
       ])
    (ENumber "5")
]